From c54481dfc5f110de3777f3a33a220efdfe5776dc Mon Sep 17 00:00:00 2001
From: moz-wptsync-bot <wptsync@mozilla.com>
Date: Tue, 17 Dec 2024 18:58:53 +0000
Subject: [PATCH] Gecko sync update

---
 css/css-properties-values-api/META.yml        | 2174 +++++++++--------
 .../animation/META.yml                        |   15 +
 2 files changed, 1129 insertions(+), 1060 deletions(-)

diff --git a/css/css-properties-values-api/META.yml b/css/css-properties-values-api/META.yml
index f3eb6271e..3530be06b 100644
--- a/css/css-properties-values-api/META.yml
+++ b/css/css-properties-values-api/META.yml
@@ -1,1061 +1,1115 @@
 links:
-    - product: safari
-      url: https://bugs.webkit.org/show_bug.cgi?id=189692
-      results:
-        - test: '*'
-    - product: webkitgtk
-      url: https://bugs.webkit.org/show_bug.cgi?id=189692
-      results:
-        - test: '*'
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634364
-      results:
-        - test: determine-registration.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634365
-      results:
-        - test: at-property-shadow.html
-          subtest: '@property rules in shadow trees should have no effect'
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634378
-      results:
-        - test: at-property-animation.html
-          subtest: '@keyframes picks up the latest @property in the document'
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared custom property
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared intial value
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared inherits flag
-        - test: at-property-animation.html
-          subtest: Ongoing animation matches new keyframes against the current registration
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared meaning of 'unset'
-        - test: at-property-animation.html
-          subtest: '@keyframes works with @property'
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg), false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, rgb(1, 2, 3), false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for ["false"]
-        - test: at-property.html
-          subtest: Rule applied [<number>, 2.5, false]
-        - test: at-property.html
-          subtest: Rule applied [<angle>, 42deg, false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [0]
-        - test: at-property.html
-          subtest: Rule applied [<angle>, 1turn, false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, 10px, false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, 10%, false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [rgb(255, 0, 0)]
-        - test: at-property.html
-          subtest: Rule applied [<integer>, 5, false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [red]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color># | <image> | none"]
-        - test: at-property.html
-          subtest: Rule applied [*, if(){}, false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, green, false]
-        - test: at-property.html
-          subtest: Inherited properties inherit
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [rgb(1, 2, 3)]
-        - test: at-property.html
-          subtest: Rule applied [<resolution>, 96dpi, false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [none]
-        - test: at-property.html
-          subtest: Non-inherited properties do not inherit
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for ["true"]
-        - test: at-property.html
-          subtest: Rule applied [<color>, tomato, false]
-        - test: at-property.html
-          subtest: Rule applied [<time>, 10s, false]
-        - test: at-property.html
-          subtest: Rule applied [<length>, 10px, false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [var(--x)]
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, calc(10% + 10px), false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["notasyntax"]
-        - test: at-property.html
-          subtest: Rule applied [<time>, 1000ms, false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["foo | bar | baz"]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [if(){}]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [foo | bar]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [1]
-        - test: at-property.html
-          subtest: Rule applied [<image>, url("http://a/"), false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [10px]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [true]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["*"]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color>"]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [foo]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [red]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [<color>]
-        - test: at-property.html
-          subtest: Rule applied [<percentage>, 10%, false]
-        - test: at-property.html
-          subtest: Rule applied [<url>, url("http://a/"), false]
-        - test: at-property.html
-          subtest: Initial value may be omitted for universal registration
-        - test: at-property.html
-          subtest: Rule applied [<color>, tomato, true]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color> | none"]
-        - test: at-property.html
-          subtest: Rule applied [<resolution>, 50dppx, false]
-        - test: at-property.html
-          subtest: Initial values substituted as computed value
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [calc(0)]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [false]
-        - test: at-property.html
-          subtest: Rule applied [<transform-function>, rotateX(0deg), false]
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634358
-      results:
-        - test: at-property-cssom.html
-          subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --valid returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --valid returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --no-syntax has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --no-initial-value has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-whitespace has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-reverse has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --vALId returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --no-inherits has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --vALId has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --no-descriptors has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --syntax-only has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --initial-value-only has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --inherits-only has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --vALId returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --valid returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --valid returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-universal has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --valid has expected cssText
-        - test: at-property-cssom.html
-          subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --vALId returns expected value for CSSPropertyRule.name
-        - test: at-property-cssom.html
-          subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.initialValue
-        - test: at-property-cssom.html
-          subtest: Rule for --vALId returns expected value for CSSPropertyRule.inherits
-        - test: at-property-cssom.html
-          subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.syntax
-        - test: at-property-cssom.html
-          subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.inherits
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg), false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, rgb(1, 2, 3), false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for ["false"]
-        - test: at-property.html
-          subtest: Rule applied [<number>, 2.5, false]
-        - test: at-property.html
-          subtest: Rule applied [<angle>, 42deg, false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [0]
-        - test: at-property.html
-          subtest: Rule applied [<angle>, 1turn, false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, 10px, false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, 10%, false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [rgb(255, 0, 0)]
-        - test: at-property.html
-          subtest: Rule applied [<integer>, 5, false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [red]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color># | <image> | none"]
-        - test: at-property.html
-          subtest: Rule applied [*, if(){}, false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, green, false]
-        - test: at-property.html
-          subtest: Inherited properties inherit
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [rgb(1, 2, 3)]
-        - test: at-property.html
-          subtest: Rule applied [<resolution>, 96dpi, false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [none]
-        - test: at-property.html
-          subtest: Non-inherited properties do not inherit
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for ["true"]
-        - test: at-property.html
-          subtest: Rule applied [<color>, tomato, false]
-        - test: at-property.html
-          subtest: Rule applied [<time>, 10s, false]
-        - test: at-property.html
-          subtest: Rule applied [<length>, 10px, false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [var(--x)]
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, calc(10% + 10px), false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["notasyntax"]
-        - test: at-property.html
-          subtest: Rule applied [<time>, 1000ms, false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["foo | bar | baz"]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [if(){}]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [foo | bar]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [1]
-        - test: at-property.html
-          subtest: Rule applied [<image>, url("http://a/"), false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [10px]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [true]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["*"]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color>"]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [foo]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [red]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [<color>]
-        - test: at-property.html
-          subtest: Rule applied [<percentage>, 10%, false]
-        - test: at-property.html
-          subtest: Rule applied [<url>, url("http://a/"), false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, tomato, true]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color> | none"]
-        - test: at-property.html
-          subtest: Rule applied [<resolution>, 50dppx, false]
-        - test: at-property.html
-          subtest: Initial values substituted as computed value
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [calc(0)]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [false]
-        - test: at-property.html
-          subtest: Rule applied [<transform-function>, rotateX(0deg), false]
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634403
-      results:
-        - test: determine-registration.html
-        - test: determine-registration.html
-          subtest: '@property registrations are cleared when rule removed'
-        - test: determine-registration.html
-          subtest: Previous invalid rule does not prevent valid rule from causing registration
-        - test: determine-registration.html
-          subtest: CSS.registerProperty determines the registration when uncontested
-        - test: determine-registration.html
-          subtest: '@property later in stylesheet wins'
-        - test: determine-registration.html
-          subtest: Invalid @property rule (missing syntax) does not overwrite previous valid rule
-        - test: determine-registration.html
-          subtest: Invalid @property rule (missing initial-value) does not overwrite previous valid rule
-        - test: determine-registration.html
-          subtest: '@property determines the registration when uncontested'
-        - test: determine-registration.html
-          subtest: CSS.registerProperty wins over @property
-        - test: determine-registration.html
-          subtest: Computed value becomes token sequence when @property is removed
-        - test: determine-registration.html
-          subtest: Invalid @property rule (missing inherits descriptor) does not overwrite previous valid rule
-        - test: determine-registration.html
-          subtest: '@property later in document order wins'
-        - test: determine-registration.html
-          subtest: Unknown descriptors are ignored and do not invalidate rule
-        - test: determine-registration.html
-          subtest: Inherited status is reflected in computed styles when @property is removed
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634408
-      results:
-        - test: at-property-animation.html
-        - test: at-property-animation.html
-          subtest: No transition when changing types
-        - test: at-property-animation.html
-          subtest: Transition triggered by initial value change
-        - test: at-property-animation.html
-          subtest: No transition when removing @property rule
-        - test: at-property-animation.html
-          subtest: '@keyframes picks up the latest @property in the document'
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared custom property
-        - test: at-property-animation.html
-          subtest: Transitioning from specified value
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared intial value
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared inherits flag
-        - test: at-property-animation.html
-          subtest: Ongoing animation matches new keyframes against the current registration
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared meaning of 'unset'
-        - test: at-property-animation.html
-          subtest: Transitioning from initial value
-        - test: at-property-animation.html
-          subtest: '@keyframes works with @property'
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634362
-      results:
-        - test: at-property-animation.html
-          subtest: '@keyframes picks up the latest @property in the document'
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared custom property
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared intial value
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared inherits flag
-        - test: at-property-animation.html
-          subtest: Ongoing animation matches new keyframes against the current registration
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared meaning of 'unset'
-        - test: at-property-animation.html
-          subtest: '@keyframes works with @property'
-        - test: var-reference-registered-properties.html
-          subtest: Valid fallback does not invalidate var()-reference [<length> | <color>, red]
-        - test: var-reference-registered-properties.html
-          subtest: Registered lists may be concatenated
-        - test: var-reference-registered-properties.html
-          subtest: var() references work with registered properties
-        - test: var-reference-registered-properties.html
-          subtest: Valid fallback does not invalidate var()-reference [<length>, 10px]
-        - test: var-reference-registered-properties.html
-          subtest: Invalid fallback invalidates var()-reference [<length>, red]
-        - test: var-reference-registered-properties.html
-          subtest: References to registered var()-properties work in registered lists
-        - test: var-reference-registered-properties.html
-          subtest: Valid fallback does not invalidate var()-reference [<length> | none, none]
-        - test: var-reference-registered-properties.html
-          subtest: Invalid fallback invalidates var()-reference [<length>, var(--novar)]
-        - test: var-reference-registered-properties.html
-          subtest: Calc expressions are resolved when substituting
-        - test: var-reference-registered-properties.html
-          subtest: Font-relative units are absolutized when substituting
-        - test: var-reference-registered-properties.html
-          subtest: Invalid fallback invalidates var()-reference [<length> | none, nolength]
-        - test: var-reference-registered-properties.html
-          subtest: Lists with relative units are absolutized when substituting
-        - test: var-reference-registered-properties.html
-          subtest: Values are absolutized when substituting into properties with universal syntax
-        - test: var-reference-registered-properties.html
-          subtest: References to mixed registered and unregistered var()-properties work in registered lists
-        - test: registered-property-computation.html
-          subtest: <length>+ values are computed correctly [10px 3em]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [25.4mm]
-        - test: registered-property-computation.html
-          subtest: <angle> values are computed correctly [calc(360deg + 400grad)]
-        - test: registered-property-computation.html
-          subtest: <length-percentage>+ values are computed correctly [calc(50% + 1em) 4px]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [14em]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [#ff0000]
-        - test: registered-property-computation.html
-          subtest: <integer>+ values are computed correctly [15 calc(2.4) calc(2.6)]
-        - test: registered-property-computation.html
-          subtest: <integer> values are computed correctly [15]
-        - test: registered-property-computation.html
-          subtest: '* values are computed correctly [50dpi]'
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [#badbee33]
-        - test: registered-property-computation.html
-          subtest: <time> values are computed correctly [calc(1000ms + 1s)]
-        - test: registered-property-computation.html
-          subtest: <transform-function>+ values are computed correctly [translateX(10%) scale(2)]
-        - test: registered-property-computation.html
-          subtest: <length-percentage># values are computed correctly [3% , 10vmax  , 22px]
-        - test: registered-property-computation.html
-          subtest: tomato | plum values are computed correctly [plum]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [currentcolor]
-        - test: registered-property-computation.html
-          subtest: <resolution> values are computed correctly [96dpi]
-        - test: registered-property-computation.html
-          subtest: <length> values computed are correctly via var()-reference when font-size is inherited
-        - test: registered-property-computation.html
-          subtest: <length># values are computed correctly [10px, 3em]
-        - test: registered-property-computation.html
-          subtest: <length># values are computed correctly [8em]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly when font-size is inherited [calc(14em + 10px)]
-        - test: registered-property-computation.html
-          subtest: <time> values are computed correctly [1000ms]
-        - test: registered-property-computation.html
-          subtest: <transform-function> values are computed correctly [translateX(2px)]
-        - test: registered-property-computation.html
-          subtest: <length>+ values are computed correctly [4em 9px]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [13vw]
-        - test: registered-property-computation.html
-          subtest: <length-percentage># values are computed correctly [calc(50% + 1em), 4px]
-        - test: registered-property-computation.html
-          subtest: <integer> values are computed correctly [calc(15 + 15)]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [plum]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [6pc]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [tomato]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [#000f00]
-        - test: registered-property-computation.html
-          subtest: <resolution> values are computed correctly [calc(1dppx + 96dpi)]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [1in]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [15vmin]
-        - test: registered-property-computation.html
-          subtest: tomato | plum | <color> values are computed correctly [plum]
-        - test: registered-property-computation.html
-          subtest: <length-percentage> values are computed correctly [calc(19em - 2%)]
-        - test: registered-property-computation.html
-          subtest: <integer> values are computed correctly [calc(2.4)]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [72pt]
-        - test: registered-property-computation.html
-          subtest: <integer> values are computed correctly [calc(2.6)]
-        - test: registered-property-computation.html
-          subtest: <length-percentage> values are computed correctly [18%]
-        - test: registered-property-computation.html
-          subtest: <transform-function> values are computed correctly [translateX(calc(11em + 10%))]
-        - test: registered-property-computation.html
-          subtest: <length> values computed are correctly via var()-reference
-        - test: registered-property-computation.html
-          subtest: '* values are computed correctly [50s]'
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [2.54cm]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly when font-size is inherited [14em]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [#badbee]
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [#00000a]
-        - test: registered-property-computation.html
-          subtest: <angle> values are computed correctly [180deg]
-        - test: registered-property-computation.html
-          subtest: <resolution> values are computed correctly [1dppx]
-        - test: registered-property-computation.html
-          subtest: '* values are computed correctly [-50grad]'
-        - test: registered-property-computation.html
-          subtest: <time> values are computed correctly [1s]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [calc(16px - 7em + 10vh)]
-        - test: registered-property-computation.html
-          subtest: <angle> values are computed correctly [400grad]
-        - test: registered-property-computation.html
-          subtest: <length># values are computed correctly [4em ,9px]
-        - test: registered-property-computation.html
-          subtest: <length-percentage># values are computed correctly [calc(13% + 37px)]
-        - test: registered-property-computation.html
-          subtest: <length> values are computed correctly [12px]
-        - test: registered-property-computation.html
-          subtest: <length-percentage> values are computed correctly [17em]
-        - test: registered-property-computation.html
-          subtest: <transform-function> values are computed correctly [translateX(10em)]
-        - test: registered-property-computation.html
-          subtest: '* values are computed correctly [tomato]'
-        - test: registered-property-computation.html
-          subtest: <integer> values are computed correctly [calc(2.6 + 3.1)]
-        - test: registered-property-computation.html
-          subtest: <length-percentage>+ values are computed correctly [3% 10vmax 22px]
-        - test: self-utils.html
-          subtest: Default initial values of generated properties are valid (self-test).
-        - test: self-utils.html
-          subtest: Generated properties respect inherits flag
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg), false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, rgb(1, 2, 3), false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for ["false"]
-        - test: at-property.html
-          subtest: Rule applied [<number>, 2.5, false]
-        - test: at-property.html
-          subtest: Rule applied [<angle>, 42deg, false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [0]
-        - test: at-property.html
-          subtest: Rule applied [<angle>, 1turn, false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, 10px, false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, 10%, false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [rgb(255, 0, 0)]
-        - test: at-property.html
-          subtest: Rule applied [<integer>, 5, false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [red]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color># | <image> | none"]
-        - test: at-property.html
-          subtest: Rule applied [*, if(){}, false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, green, false]
-        - test: at-property.html
-          subtest: Inherited properties inherit
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [rgb(1, 2, 3)]
-        - test: at-property.html
-          subtest: Rule applied [<resolution>, 96dpi, false]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [none]
-        - test: at-property.html
-          subtest: Non-inherited properties do not inherit
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for ["true"]
-        - test: at-property.html
-          subtest: Rule applied [<color>, tomato, false]
-        - test: at-property.html
-          subtest: Rule applied [<time>, 10s, false]
-        - test: at-property.html
-          subtest: Rule applied [<length>, 10px, false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [var(--x)]
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
-        - test: at-property.html
-          subtest: Rule applied [<length-percentage>, calc(10% + 10px), false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["notasyntax"]
-        - test: at-property.html
-          subtest: Rule applied [<time>, 1000ms, false]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["foo | bar | baz"]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [if(){}]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [foo | bar]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [1]
-        - test: at-property.html
-          subtest: Rule applied [<image>, url("http://a/"), false]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [10px]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [true]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["*"]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color>"]
-        - test: at-property.html
-          subtest: Attribute 'initial-value' returns expected value for [foo]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [red]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for [<color>]
-        - test: at-property.html
-          subtest: Rule applied [<percentage>, 10%, false]
-        - test: at-property.html
-          subtest: Rule applied [<url>, url("http://a/"), false]
-        - test: at-property.html
-          subtest: Rule applied [<color>, tomato, true]
-        - test: at-property.html
-          subtest: Attribute 'syntax' returns expected value for ["<color> | none"]
-        - test: at-property.html
-          subtest: Rule applied [<resolution>, 50dppx, false]
-        - test: at-property.html
-          subtest: Initial values substituted as computed value
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [calc(0)]
-        - test: at-property.html
-          subtest: Attribute 'inherits' returns expected value for [false]
-        - test: at-property.html
-          subtest: Rule applied [<transform-function>, rotateX(0deg), false]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [calc(13% + 37%), --x]
-        - test: registered-property-initial.html
-          subtest: Initial value for <length> correctly computed [2.54cm]
-        - test: registered-property-initial.html
-          subtest: Initial value for <transform-list> correctly computed [scale(calc(2 + 2))]
-        - test: registered-property-initial.html
-          subtest: "Initial non-inherited value can be substituted [\t1turn, --x]"
-        - test: registered-property-initial.html
-          subtest: Initial value for <length> correctly computed [72pt]
-        - test: registered-property-initial.html
-          subtest: Initial value for <transform-function> correctly computed [rotate(42deg)]
-        - test: registered-property-initial.html
-          subtest: Initial value for <percentage> correctly computed [calc(10% + 20%)]
-        - test: registered-property-initial.html
-          subtest: Initial value for <color> correctly computed [pink, inherits]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [calc(20 + 20 + 10), --x]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [pink, background-color]
-        - test: registered-property-initial.html
-          subtest: "Initial non-inherited value can be substituted [\tcalc(13% + 37px), --x]"
-        - test: registered-property-initial.html
-          subtest: Initial value for <url> correctly computed [url(a)]
-        - test: registered-property-initial.html
-          subtest: Initial inherited value can be substituted [purple, color]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)) translateX(calc(3px + 1px)), --x]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [2000ms, --x]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [ pink , --x]
-        - test: registered-property-initial.html
-          subtest: Initial value for <color> correctly computed [purple]
-        - test: registered-property-initial.html
-          subtest: Initial value for <length-percentage> correctly computed [calc(1in + 10% + 4px)]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [calc(10px + 15px), --x]
-        - test: registered-property-initial.html
-          subtest: Initial value for <length> correctly computed [calc(10px + 15px)]
-        - test: registered-property-initial.html
-          subtest: Initial value for <length> correctly computed [25.4mm]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [calc(13 + 37), --x]
-        - test: registered-property-initial.html
-          subtest: Initial value for <length> correctly computed [6pc]
-        - test: registered-property-initial.html
-          subtest: Initial value for <length> correctly computed [1in]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)), --x]
-        - test: registered-property-initial.html
-          subtest: "Initial non-inherited value can be substituted [\tfoo\t, --x]"
-        - test: registered-property-initial.html
-          subtest: Initial value for <transform-list> correctly computed [scale(calc(2 + 1)) translateX(calc(3px + 1px))]
-        - test: registered-property-initial.html
-          subtest: "Initial non-inherited value can be substituted [\ttest, --x]"
-        - test: registered-property-initial.html
-          subtest: Initial value for <url>+ correctly computed [url(a) url(a)]
-        - test: typedom.html
-        - test: typedom.html
-          subtest: Computed * is reified as CSSUnparsedValue
-        - test: register-property.html
-          subtest: registerProperty fails for an already registered property
-        - test: register-property.html
-          subtest: registerProperty only allows omitting initialValue if syntax is '*'
-        - test: register-property.html
-          subtest: Registering a property should not cause a transition
-        - test: register-property.html
-          subtest: registerProperty requires a name matching <custom-property-name>
-        - test: register-property.html
-          subtest: registerProperty requires inherits
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634457
-      results:
-        - test: at-property-typedom.html
-        - test: at-property-typedom.html
-          subtest: Properties declared with @property reify correctly
-        - test: at-property-typedom.html
-          subtest: Re-declaring a property with a different type affects reification
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1635405
-      results:
-        - test: registered-property-change-style-001.html
-        - test: registered-property-change-style-001.html
-          subtest: 'Registered property overrides a previous declaration '
-        - test: registered-property-change-style-001.html
-          subtest: New registered property declaration
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634383
-      results:
-        - test: at-property-stylesheets.html
-          subtest: '@property removal detected with removal of first stylesheet'
-        - test: at-property-stylesheets.html
-          subtest: '@property removal detected when last @property rule disappears'
-        - test: at-property-stylesheets.html
-          subtest: '@property detected when stylesheet appears'
-        - test: at-property-stylesheets.html
-          subtest: '@property removal detected with removal of second stylesheet'
-        - test: at-property-stylesheets.html
-          subtest: '@property detected in second stylesheet'
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634401
-      results:
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: attribute inherits'
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: existence and properties of interface prototype object''s @@unscopables property'
-        - test: idlharness.html
-          subtest: CSSPropertyRule interface object name
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: attribute initialValue'
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: existence and properties of interface prototype object''s "constructor" property'
-        - test: idlharness.html
-          subtest: 'CSSRule interface: constant PROPERTY_RULE on interface object'
-        - test: idlharness.html
-          subtest: 'CSSRule interface: constant PROPERTY_RULE on interface prototype object'
-        - test: idlharness.html
-          subtest: CSSPropertyRule interface object length
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: attribute syntax'
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: attribute name'
-        - test: idlharness.html
-          subtest: 'CSS namespace: operation registerProperty(PropertyDefinition)'
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: existence and properties of interface object'
-        - test: idlharness.html
-          subtest: 'CSSPropertyRule interface: existence and properties of interface prototype object'
-    - product: chrome
-      url: https://crbug.com/882285
-      results:
-        - test: register-property-syntax-parsing.html
-    - product: chrome
-      url: https://bugs.chromium.org/p/chromium/issues/detail?id=900119
-      results:
-        - test: registered-property-computation.html
-        - test: registered-property-initial.html
-        - test: self-utils.html
-        - test: typedom.html
-    - product: chrome
-      url: https://bugs.chromium.org/p/chromium/issues/detail?id=981537
-      results:
-        - test: at-property.html
-          subtest: Rule applied [<image>, url("http://a/"), false]
-    - product: chrome
-      url: https://bugs.chromium.org/p/chromium/issues/detail?id=911156
-      results:
-        - test: at-property.html
-          subtest: Rule applied [<transform-function>, rotateX(0deg), false]
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg), false]
-        - test: at-property.html
-          subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
-        - test: registered-property-initial.html
-        - test: registered-property-computation.html
-    - label: interop-2023-property
-      results:
-        - test: at-property-cssom.html
-        - test: at-property-viewport-units-dynamic.html
-        - test: register-property.html
-        - test: registered-property-computation.html
-        - test: registered-property-crosstalk.html
-        - test: registered-property-cssom.html
-        - test: at-property-animation.html
-        - test: at-property-stylesheets.html
-        - test: register-property-syntax-parsing.html
-        - test: registered-property-change-style-001.html
-        - test: registered-property-initial.html
-        - test: registered-property-revert.html
-        - test: at-property.html
-        - test: property-cascade.html
-        - test: at-property-viewport-units.html
-    - product: chrome
-      url: https://crbug.com/981537
-      results:
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<image>', initialValue:'url(a)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<image>', initialValue:'linear-gradient(yellow, blue)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<color> | <image> | <url> | <integer> | <angle>', initialValue:'red' is valid
-    - product: chrome
-      url: https://crbug.com/911156
-      results:
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<time> | <resolution> | <transform-list> | <custom-ident>', initialValue:'red' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function>', initialValue:'translateX(2px)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function>|<integer>', initialValue:'5' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function>|<integer>', initialValue:'scale(2)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function>+', initialValue:'translateX(2px) rotate(42deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-list>', initialValue:'scale(2)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-list>', initialValue:'translateX(2px) rotate(20deg)' is valid
-        - test: registered-property-computation.html
-          subtest: <transform-function> values are computed correctly [translateX(2px)]
-        - test: registered-property-computation.html
-          subtest: <transform-function> values are computed correctly [translateX(10em)]
-        - test: registered-property-computation.html
-          subtest: <transform-function> values are computed correctly [translateX(calc(11em + 10%))]
-        - test: registered-property-computation.html
-          subtest: <transform-function>+ values are computed correctly [translateX(10%) scale(2)]
-        - test: registered-property-initial.html
-          subtest: Initial value for <transform-function> correctly computed [rotate(42deg)]
-        - test: registered-property-initial.html
-          subtest: Initial value for <transform-list> correctly computed [scale(calc(2 + 2))]
-        - test: registered-property-initial.html
-          subtest: Initial value for <transform-list> correctly computed [scale(calc(2 + 1)) translateX(calc(3px + 1px))]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)), --x]
-        - test: registered-property-initial.html
-          subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)) translateX(calc(3px + 1px)), --x]
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-list> | <transform-function> ', initialValue:'scale(2) rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function> | <transform-list>', initialValue:'scale(2) rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-list> | <transform-function>+ ', initialValue:'scale(2) rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function>+ | <transform-list>', initialValue:'scale(2) rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-list> | <transform-function># ', initialValue:'scale(2) rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function># | <transform-list>', initialValue:'scale(2) rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-list> | <transform-function># ', initialValue:'scale(2), rotate(90deg)' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<transform-function># | <transform-list>', initialValue:'scale(2), rotate(90deg)' is valid
-    - product: chrome
-      url: https://crbug.com/983613
-      results:
-        - test: registered-property-computation.html
-          subtest: <resolution> values are computed correctly [calc(1dppx + 96dpi)]
-    - product: safari
-      url: https://bugs.webkit.org/show_bug.cgi?id=251509
-      results:
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared custom property
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared intial value
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared meaning of 'unset'
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1684605
-      results:
-        - test: at-property-stylesheets.html
-        - test: at-property-viewport-units.html
-        - test: at-property-viewport-units-dynamic.html
-        - test: at-property.html
-        - test: at-property-animation.html
-        - test: at-property-cssom.html
-        - test: at-property-shadow.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1821552
-      results:
-        - test: property-cascade.html
-          subtest: Registering a property does not affect parsing
-        - test: registered-property-crosstalk.html
-        - test: registered-property-cssom.html
-        - test: register-property.html
-        - test: registered-property-change-style-001.html
-        - test: register-property-syntax-parsing.html
-        - test: registered-property-revert.html
-        - test: registered-property-computation.html
-        - test: registered-property-initial.html
-    - product: chrome
-      url: https://crbug.com/1344170
-      results:
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'*', initialValue:'default' is valid
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1846516
-      results:
-        - test: registered-property-revert.html
-        - test: at-property-animation.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1866917
-      results:
-        - test: registered-property-computation.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1870348
-      results:
-        - test: registered-property-revert.html
-          subtest: Non-inherited registered custom property can be reverted in animation
-        - test: registered-property-revert.html
-          subtest: Inherited registered custom property can be reverted in animation
-        - test: registered-property-revert.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1869185
-      results:
-        - test: at-property-animation.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1870370
-      results:
-        - test: at-property-animation.html
-          subtest: '@keyframes works with @property'
-        - test: at-property-animation.html
-          subtest: '@keyframes picks up the latest @property in the document'
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared custom property
-        - test: at-property-animation.html
-          subtest: Ongoing animation matches new keyframes against the current registration
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared intial value
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared inherits flag
-        - test: at-property-animation.html
-          subtest: Ongoing animation picks up redeclared meaning of 'unset'
-        - test: at-property-animation.html
-          subtest: Transitioning from initial value
-        - test: at-property-animation.html
-          subtest: Transitioning from specified value
-        - test: at-property-animation.html
-          subtest: Transition triggered by initial value change
-        - test: at-property-animation.html
-          subtest: No transition when removing @property rule
-        - test: at-property-animation.html
-          subtest: Unregistered properties referencing animated properties update correctly.
-        - test: at-property-animation.html
-          subtest: Registered properties referencing animated properties update correctly.
-        - test: at-property-animation.html
-          subtest: CSS animation setting "inherit" for a custom property on a keyframe is responsive to changing that custom property on the parent.
-        - test: at-property-animation.html
-          subtest: JS-originated animation setting "inherit" for a custom property on a keyframe is responsive to changing that custom property on the parent.
-        - test: at-property-animation.html
-          subtest: CSS animation setting "currentColor" for a custom property on a keyframe is responsive to changing "color" on the parent.
-        - test: at-property-animation.html
-          subtest: JS-originated animation setting "currentColor" for a custom property on a keyframe is responsive to changing "color" on the parent.
-        - test: at-property-animation.html
-    - product: safari
-      url: https://bugs.webkit.org/show_bug.cgi?id=270586
-      results:
-        - test: at-property-shadow.html
-          subtest: '@property rules in shadow trees should be globally registered'
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1891261
-      results:
-        - test: at-property-shadow.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1884872
-      results:
-        - test: at-property-shadow.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1892492
-      results:
-        - test: registered-property-computation.html
-          subtest: <color> values are computed correctly [color(from lime srgb g g g)]
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1918413
-      results:
-        - test: register-property-syntax-parsing.html
-    - product: firefox
-      url: https://bugzilla.mozilla.org/show_bug.cgi?id=1915981
-      results:
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<number>', initialValue:'calc(15 + (sign(100vh - 10px) * 5))' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<integer>', initialValue:'calc(15 + (sign(100vh - 10px) * 5))' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<angle>', initialValue:'calc(15deg + (sign(100vh - 10px) * 5deg))' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<time>', initialValue:'calc(15s + (sign(100vh - 10px) * 5s))' is valid
-        - test: register-property-syntax-parsing.html
-          subtest: syntax:'<resolution>', initialValue:'calc(15dppx + (sign(100vh - 10px) * 5dpi))' is valid
-    - product: safari
-      url: https://bugs.webkit.org/show_bug.cgi?id=279751
-      results:
-        - test: at-property.html
-          subtest: Attribute 'initial-value' makes the @property rule invalid for [var(--x)]
+- product: safari
+  results:
+  - test: '*'
+  url: https://bugs.webkit.org/show_bug.cgi?id=189692
+- product: webkitgtk
+  results:
+  - test: '*'
+  url: https://bugs.webkit.org/show_bug.cgi?id=189692
+- product: firefox
+  results:
+  - test: determine-registration.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634364
+- product: firefox
+  results:
+  - subtest: '@property rules in shadow trees should have no effect'
+    test: at-property-shadow.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634365
+- product: firefox
+  results:
+  - subtest: '@keyframes picks up the latest @property in the document'
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared custom property
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared intial value
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared inherits flag
+    test: at-property-animation.html
+  - subtest: Ongoing animation matches new keyframes against the current registration
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared meaning of 'unset'
+    test: at-property-animation.html
+  - subtest: '@keyframes works with @property'
+    test: at-property-animation.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg), false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, rgb(1, 2, 3), false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for ["false"]
+    test: at-property.html
+  - subtest: Rule applied [<number>, 2.5, false]
+    test: at-property.html
+  - subtest: Rule applied [<angle>, 42deg, false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [0]
+    test: at-property.html
+  - subtest: Rule applied [<angle>, 1turn, false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, 10px, false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, 10%, false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [rgb(255, 0, 0)]
+    test: at-property.html
+  - subtest: Rule applied [<integer>, 5, false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [red]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color># | <image> |
+      none"]
+    test: at-property.html
+  - subtest: Rule applied [*, if(){}, false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, green, false]
+    test: at-property.html
+  - subtest: Inherited properties inherit
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [rgb(1, 2, 3)]
+    test: at-property.html
+  - subtest: Rule applied [<resolution>, 96dpi, false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [none]
+    test: at-property.html
+  - subtest: Non-inherited properties do not inherit
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for ["true"]
+    test: at-property.html
+  - subtest: Rule applied [<color>, tomato, false]
+    test: at-property.html
+  - subtest: Rule applied [<time>, 10s, false]
+    test: at-property.html
+  - subtest: Rule applied [<length>, 10px, false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [var(--x)]
+    test: at-property.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, calc(10% + 10px), false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["notasyntax"]
+    test: at-property.html
+  - subtest: Rule applied [<time>, 1000ms, false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["foo | bar | baz"]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [if(){}]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [foo | bar]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [1]
+    test: at-property.html
+  - subtest: Rule applied [<image>, url("http://a/"), false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [10px]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [true]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["*"]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color>"]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [foo]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [red]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [<color>]
+    test: at-property.html
+  - subtest: Rule applied [<percentage>, 10%, false]
+    test: at-property.html
+  - subtest: Rule applied [<url>, url("http://a/"), false]
+    test: at-property.html
+  - subtest: Initial value may be omitted for universal registration
+    test: at-property.html
+  - subtest: Rule applied [<color>, tomato, true]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color> | none"]
+    test: at-property.html
+  - subtest: Rule applied [<resolution>, 50dppx, false]
+    test: at-property.html
+  - subtest: Initial values substituted as computed value
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [calc(0)]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [false]
+    test: at-property.html
+  - subtest: Rule applied [<transform-function>, rotateX(0deg), false]
+    test: at-property.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634378
+- product: firefox
+  results:
+  - subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --valid returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --valid returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --no-syntax has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --no-initial-value has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-whitespace has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-reverse has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --vALId returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --no-inherits has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --vALId has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --no-descriptors has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --syntax-only has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-universal returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --initial-value-only has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --syntax-only returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --no-syntax returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --initial-value-only returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --inherits-only has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --vALId returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --valid returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --valid returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-universal has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --valid has expected cssText
+    test: at-property-cssom.html
+  - subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --inherits-only returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-whitespace returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --vALId returns expected value for CSSPropertyRule.name
+    test: at-property-cssom.html
+  - subtest: Rule for --no-descriptors returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --valid-reverse returns expected value for CSSPropertyRule.initialValue
+    test: at-property-cssom.html
+  - subtest: Rule for --vALId returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule for --no-inherits returns expected value for CSSPropertyRule.syntax
+    test: at-property-cssom.html
+  - subtest: Rule for --no-initial-value returns expected value for CSSPropertyRule.inherits
+    test: at-property-cssom.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg), false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, rgb(1, 2, 3), false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for ["false"]
+    test: at-property.html
+  - subtest: Rule applied [<number>, 2.5, false]
+    test: at-property.html
+  - subtest: Rule applied [<angle>, 42deg, false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [0]
+    test: at-property.html
+  - subtest: Rule applied [<angle>, 1turn, false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, 10px, false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, 10%, false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [rgb(255, 0, 0)]
+    test: at-property.html
+  - subtest: Rule applied [<integer>, 5, false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [red]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color># | <image> |
+      none"]
+    test: at-property.html
+  - subtest: Rule applied [*, if(){}, false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, green, false]
+    test: at-property.html
+  - subtest: Inherited properties inherit
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [rgb(1, 2, 3)]
+    test: at-property.html
+  - subtest: Rule applied [<resolution>, 96dpi, false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [none]
+    test: at-property.html
+  - subtest: Non-inherited properties do not inherit
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for ["true"]
+    test: at-property.html
+  - subtest: Rule applied [<color>, tomato, false]
+    test: at-property.html
+  - subtest: Rule applied [<time>, 10s, false]
+    test: at-property.html
+  - subtest: Rule applied [<length>, 10px, false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [var(--x)]
+    test: at-property.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, calc(10% + 10px), false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["notasyntax"]
+    test: at-property.html
+  - subtest: Rule applied [<time>, 1000ms, false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["foo | bar | baz"]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [if(){}]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [foo | bar]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [1]
+    test: at-property.html
+  - subtest: Rule applied [<image>, url("http://a/"), false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [10px]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [true]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["*"]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color>"]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [foo]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [red]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [<color>]
+    test: at-property.html
+  - subtest: Rule applied [<percentage>, 10%, false]
+    test: at-property.html
+  - subtest: Rule applied [<url>, url("http://a/"), false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, tomato, true]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color> | none"]
+    test: at-property.html
+  - subtest: Rule applied [<resolution>, 50dppx, false]
+    test: at-property.html
+  - subtest: Initial values substituted as computed value
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [calc(0)]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [false]
+    test: at-property.html
+  - subtest: Rule applied [<transform-function>, rotateX(0deg), false]
+    test: at-property.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634358
+- product: firefox
+  results:
+  - test: determine-registration.html
+  - subtest: '@property registrations are cleared when rule removed'
+    test: determine-registration.html
+  - subtest: Previous invalid rule does not prevent valid rule from causing registration
+    test: determine-registration.html
+  - subtest: CSS.registerProperty determines the registration when uncontested
+    test: determine-registration.html
+  - subtest: '@property later in stylesheet wins'
+    test: determine-registration.html
+  - subtest: Invalid @property rule (missing syntax) does not overwrite previous valid
+      rule
+    test: determine-registration.html
+  - subtest: Invalid @property rule (missing initial-value) does not overwrite previous
+      valid rule
+    test: determine-registration.html
+  - subtest: '@property determines the registration when uncontested'
+    test: determine-registration.html
+  - subtest: CSS.registerProperty wins over @property
+    test: determine-registration.html
+  - subtest: Computed value becomes token sequence when @property is removed
+    test: determine-registration.html
+  - subtest: Invalid @property rule (missing inherits descriptor) does not overwrite
+      previous valid rule
+    test: determine-registration.html
+  - subtest: '@property later in document order wins'
+    test: determine-registration.html
+  - subtest: Unknown descriptors are ignored and do not invalidate rule
+    test: determine-registration.html
+  - subtest: Inherited status is reflected in computed styles when @property is removed
+    test: determine-registration.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634403
+- product: firefox
+  results:
+  - test: at-property-animation.html
+  - subtest: No transition when changing types
+    test: at-property-animation.html
+  - subtest: Transition triggered by initial value change
+    test: at-property-animation.html
+  - subtest: No transition when removing @property rule
+    test: at-property-animation.html
+  - subtest: '@keyframes picks up the latest @property in the document'
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared custom property
+    test: at-property-animation.html
+  - subtest: Transitioning from specified value
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared intial value
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared inherits flag
+    test: at-property-animation.html
+  - subtest: Ongoing animation matches new keyframes against the current registration
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared meaning of 'unset'
+    test: at-property-animation.html
+  - subtest: Transitioning from initial value
+    test: at-property-animation.html
+  - subtest: '@keyframes works with @property'
+    test: at-property-animation.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634408
+- product: firefox
+  results:
+  - subtest: '@keyframes picks up the latest @property in the document'
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared custom property
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared intial value
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared inherits flag
+    test: at-property-animation.html
+  - subtest: Ongoing animation matches new keyframes against the current registration
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared meaning of 'unset'
+    test: at-property-animation.html
+  - subtest: '@keyframes works with @property'
+    test: at-property-animation.html
+  - subtest: Valid fallback does not invalidate var()-reference [<length> | <color>,
+      red]
+    test: var-reference-registered-properties.html
+  - subtest: Registered lists may be concatenated
+    test: var-reference-registered-properties.html
+  - subtest: var() references work with registered properties
+    test: var-reference-registered-properties.html
+  - subtest: Valid fallback does not invalidate var()-reference [<length>, 10px]
+    test: var-reference-registered-properties.html
+  - subtest: Invalid fallback invalidates var()-reference [<length>, red]
+    test: var-reference-registered-properties.html
+  - subtest: References to registered var()-properties work in registered lists
+    test: var-reference-registered-properties.html
+  - subtest: Valid fallback does not invalidate var()-reference [<length> | none,
+      none]
+    test: var-reference-registered-properties.html
+  - subtest: Invalid fallback invalidates var()-reference [<length>, var(--novar)]
+    test: var-reference-registered-properties.html
+  - subtest: Calc expressions are resolved when substituting
+    test: var-reference-registered-properties.html
+  - subtest: Font-relative units are absolutized when substituting
+    test: var-reference-registered-properties.html
+  - subtest: Invalid fallback invalidates var()-reference [<length> | none, nolength]
+    test: var-reference-registered-properties.html
+  - subtest: Lists with relative units are absolutized when substituting
+    test: var-reference-registered-properties.html
+  - subtest: Values are absolutized when substituting into properties with universal
+      syntax
+    test: var-reference-registered-properties.html
+  - subtest: References to mixed registered and unregistered var()-properties work
+      in registered lists
+    test: var-reference-registered-properties.html
+  - subtest: <length>+ values are computed correctly [10px 3em]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [25.4mm]
+    test: registered-property-computation.html
+  - subtest: <angle> values are computed correctly [calc(360deg + 400grad)]
+    test: registered-property-computation.html
+  - subtest: <length-percentage>+ values are computed correctly [calc(50% + 1em) 4px]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [14em]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [#ff0000]
+    test: registered-property-computation.html
+  - subtest: <integer>+ values are computed correctly [15 calc(2.4) calc(2.6)]
+    test: registered-property-computation.html
+  - subtest: <integer> values are computed correctly [15]
+    test: registered-property-computation.html
+  - subtest: '* values are computed correctly [50dpi]'
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [#badbee33]
+    test: registered-property-computation.html
+  - subtest: <time> values are computed correctly [calc(1000ms + 1s)]
+    test: registered-property-computation.html
+  - subtest: <transform-function>+ values are computed correctly [translateX(10%)
+      scale(2)]
+    test: registered-property-computation.html
+  - subtest: <length-percentage># values are computed correctly [3% , 10vmax  , 22px]
+    test: registered-property-computation.html
+  - subtest: tomato | plum values are computed correctly [plum]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [currentcolor]
+    test: registered-property-computation.html
+  - subtest: <resolution> values are computed correctly [96dpi]
+    test: registered-property-computation.html
+  - subtest: <length> values computed are correctly via var()-reference when font-size
+      is inherited
+    test: registered-property-computation.html
+  - subtest: <length># values are computed correctly [10px, 3em]
+    test: registered-property-computation.html
+  - subtest: <length># values are computed correctly [8em]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly when font-size is inherited [calc(14em
+      + 10px)]
+    test: registered-property-computation.html
+  - subtest: <time> values are computed correctly [1000ms]
+    test: registered-property-computation.html
+  - subtest: <transform-function> values are computed correctly [translateX(2px)]
+    test: registered-property-computation.html
+  - subtest: <length>+ values are computed correctly [4em 9px]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [13vw]
+    test: registered-property-computation.html
+  - subtest: <length-percentage># values are computed correctly [calc(50% + 1em),
+      4px]
+    test: registered-property-computation.html
+  - subtest: <integer> values are computed correctly [calc(15 + 15)]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [plum]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [6pc]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [tomato]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [#000f00]
+    test: registered-property-computation.html
+  - subtest: <resolution> values are computed correctly [calc(1dppx + 96dpi)]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [1in]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [15vmin]
+    test: registered-property-computation.html
+  - subtest: tomato | plum | <color> values are computed correctly [plum]
+    test: registered-property-computation.html
+  - subtest: <length-percentage> values are computed correctly [calc(19em - 2%)]
+    test: registered-property-computation.html
+  - subtest: <integer> values are computed correctly [calc(2.4)]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [72pt]
+    test: registered-property-computation.html
+  - subtest: <integer> values are computed correctly [calc(2.6)]
+    test: registered-property-computation.html
+  - subtest: <length-percentage> values are computed correctly [18%]
+    test: registered-property-computation.html
+  - subtest: <transform-function> values are computed correctly [translateX(calc(11em
+      + 10%))]
+    test: registered-property-computation.html
+  - subtest: <length> values computed are correctly via var()-reference
+    test: registered-property-computation.html
+  - subtest: '* values are computed correctly [50s]'
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [2.54cm]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly when font-size is inherited [14em]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [#badbee]
+    test: registered-property-computation.html
+  - subtest: <color> values are computed correctly [#00000a]
+    test: registered-property-computation.html
+  - subtest: <angle> values are computed correctly [180deg]
+    test: registered-property-computation.html
+  - subtest: <resolution> values are computed correctly [1dppx]
+    test: registered-property-computation.html
+  - subtest: '* values are computed correctly [-50grad]'
+    test: registered-property-computation.html
+  - subtest: <time> values are computed correctly [1s]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [calc(16px - 7em + 10vh)]
+    test: registered-property-computation.html
+  - subtest: <angle> values are computed correctly [400grad]
+    test: registered-property-computation.html
+  - subtest: <length># values are computed correctly [4em ,9px]
+    test: registered-property-computation.html
+  - subtest: <length-percentage># values are computed correctly [calc(13% + 37px)]
+    test: registered-property-computation.html
+  - subtest: <length> values are computed correctly [12px]
+    test: registered-property-computation.html
+  - subtest: <length-percentage> values are computed correctly [17em]
+    test: registered-property-computation.html
+  - subtest: <transform-function> values are computed correctly [translateX(10em)]
+    test: registered-property-computation.html
+  - subtest: '* values are computed correctly [tomato]'
+    test: registered-property-computation.html
+  - subtest: <integer> values are computed correctly [calc(2.6 + 3.1)]
+    test: registered-property-computation.html
+  - subtest: <length-percentage>+ values are computed correctly [3% 10vmax 22px]
+    test: registered-property-computation.html
+  - subtest: Default initial values of generated properties are valid (self-test).
+    test: self-utils.html
+  - subtest: Generated properties respect inherits flag
+    test: self-utils.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg), false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, rgb(1, 2, 3), false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for ["false"]
+    test: at-property.html
+  - subtest: Rule applied [<number>, 2.5, false]
+    test: at-property.html
+  - subtest: Rule applied [<angle>, 42deg, false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [0]
+    test: at-property.html
+  - subtest: Rule applied [<angle>, 1turn, false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, 10px, false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, 10%, false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [rgb(255, 0, 0)]
+    test: at-property.html
+  - subtest: Rule applied [<integer>, 5, false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [red]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color># | <image> |
+      none"]
+    test: at-property.html
+  - subtest: Rule applied [*, if(){}, false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, green, false]
+    test: at-property.html
+  - subtest: Inherited properties inherit
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [rgb(1, 2, 3)]
+    test: at-property.html
+  - subtest: Rule applied [<resolution>, 96dpi, false]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [none]
+    test: at-property.html
+  - subtest: Non-inherited properties do not inherit
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for ["true"]
+    test: at-property.html
+  - subtest: Rule applied [<color>, tomato, false]
+    test: at-property.html
+  - subtest: Rule applied [<time>, 10s, false]
+    test: at-property.html
+  - subtest: Rule applied [<length>, 10px, false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [var(--x)]
+    test: at-property.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
+    test: at-property.html
+  - subtest: Rule applied [<length-percentage>, calc(10% + 10px), false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["notasyntax"]
+    test: at-property.html
+  - subtest: Rule applied [<time>, 1000ms, false]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["foo | bar | baz"]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [if(){}]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [foo | bar]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [1]
+    test: at-property.html
+  - subtest: Rule applied [<image>, url("http://a/"), false]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [10px]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [true]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["*"]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color>"]
+    test: at-property.html
+  - subtest: Attribute 'initial-value' returns expected value for [foo]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [red]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for [<color>]
+    test: at-property.html
+  - subtest: Rule applied [<percentage>, 10%, false]
+    test: at-property.html
+  - subtest: Rule applied [<url>, url("http://a/"), false]
+    test: at-property.html
+  - subtest: Rule applied [<color>, tomato, true]
+    test: at-property.html
+  - subtest: Attribute 'syntax' returns expected value for ["<color> | none"]
+    test: at-property.html
+  - subtest: Rule applied [<resolution>, 50dppx, false]
+    test: at-property.html
+  - subtest: Initial values substituted as computed value
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [calc(0)]
+    test: at-property.html
+  - subtest: Attribute 'inherits' returns expected value for [false]
+    test: at-property.html
+  - subtest: Rule applied [<transform-function>, rotateX(0deg), false]
+    test: at-property.html
+  - subtest: Initial non-inherited value can be substituted [calc(13% + 37%), --x]
+    test: registered-property-initial.html
+  - subtest: Initial value for <length> correctly computed [2.54cm]
+    test: registered-property-initial.html
+  - subtest: Initial value for <transform-list> correctly computed [scale(calc(2 +
+      2))]
+    test: registered-property-initial.html
+  - subtest: "Initial non-inherited value can be substituted [\t1turn, --x]"
+    test: registered-property-initial.html
+  - subtest: Initial value for <length> correctly computed [72pt]
+    test: registered-property-initial.html
+  - subtest: Initial value for <transform-function> correctly computed [rotate(42deg)]
+    test: registered-property-initial.html
+  - subtest: Initial value for <percentage> correctly computed [calc(10% + 20%)]
+    test: registered-property-initial.html
+  - subtest: Initial value for <color> correctly computed [pink, inherits]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [calc(20 + 20 + 10), --x]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [pink, background-color]
+    test: registered-property-initial.html
+  - subtest: "Initial non-inherited value can be substituted [\tcalc(13% + 37px),\
+      \ --x]"
+    test: registered-property-initial.html
+  - subtest: Initial value for <url> correctly computed [url(a)]
+    test: registered-property-initial.html
+  - subtest: Initial inherited value can be substituted [purple, color]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)) translateX(calc(3px
+      + 1px)), --x]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [2000ms, --x]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [ pink , --x]
+    test: registered-property-initial.html
+  - subtest: Initial value for <color> correctly computed [purple]
+    test: registered-property-initial.html
+  - subtest: Initial value for <length-percentage> correctly computed [calc(1in +
+      10% + 4px)]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [calc(10px + 15px), --x]
+    test: registered-property-initial.html
+  - subtest: Initial value for <length> correctly computed [calc(10px + 15px)]
+    test: registered-property-initial.html
+  - subtest: Initial value for <length> correctly computed [25.4mm]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [calc(13 + 37), --x]
+    test: registered-property-initial.html
+  - subtest: Initial value for <length> correctly computed [6pc]
+    test: registered-property-initial.html
+  - subtest: Initial value for <length> correctly computed [1in]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)), --x]
+    test: registered-property-initial.html
+  - subtest: "Initial non-inherited value can be substituted [\tfoo\t, --x]"
+    test: registered-property-initial.html
+  - subtest: Initial value for <transform-list> correctly computed [scale(calc(2 +
+      1)) translateX(calc(3px + 1px))]
+    test: registered-property-initial.html
+  - subtest: "Initial non-inherited value can be substituted [\ttest, --x]"
+    test: registered-property-initial.html
+  - subtest: Initial value for <url>+ correctly computed [url(a) url(a)]
+    test: registered-property-initial.html
+  - test: typedom.html
+  - subtest: Computed * is reified as CSSUnparsedValue
+    test: typedom.html
+  - subtest: registerProperty fails for an already registered property
+    test: register-property.html
+  - subtest: registerProperty only allows omitting initialValue if syntax is '*'
+    test: register-property.html
+  - subtest: Registering a property should not cause a transition
+    test: register-property.html
+  - subtest: registerProperty requires a name matching <custom-property-name>
+    test: register-property.html
+  - subtest: registerProperty requires inherits
+    test: register-property.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634362
+- product: firefox
+  results:
+  - test: at-property-typedom.html
+  - subtest: Properties declared with @property reify correctly
+    test: at-property-typedom.html
+  - subtest: Re-declaring a property with a different type affects reification
+    test: at-property-typedom.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634457
+- product: firefox
+  results:
+  - test: registered-property-change-style-001.html
+  - subtest: 'Registered property overrides a previous declaration '
+    test: registered-property-change-style-001.html
+  - subtest: New registered property declaration
+    test: registered-property-change-style-001.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1635405
+- product: firefox
+  results:
+  - subtest: '@property removal detected with removal of first stylesheet'
+    test: at-property-stylesheets.html
+  - subtest: '@property removal detected when last @property rule disappears'
+    test: at-property-stylesheets.html
+  - subtest: '@property detected when stylesheet appears'
+    test: at-property-stylesheets.html
+  - subtest: '@property removal detected with removal of second stylesheet'
+    test: at-property-stylesheets.html
+  - subtest: '@property detected in second stylesheet'
+    test: at-property-stylesheets.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634383
+- product: firefox
+  results:
+  - subtest: 'CSSPropertyRule interface: attribute inherits'
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: existence and properties of interface prototype
+      object''s @@unscopables property'
+    test: idlharness.html
+  - subtest: CSSPropertyRule interface object name
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: attribute initialValue'
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: existence and properties of interface prototype
+      object''s "constructor" property'
+    test: idlharness.html
+  - subtest: 'CSSRule interface: constant PROPERTY_RULE on interface object'
+    test: idlharness.html
+  - subtest: 'CSSRule interface: constant PROPERTY_RULE on interface prototype object'
+    test: idlharness.html
+  - subtest: CSSPropertyRule interface object length
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: attribute syntax'
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: attribute name'
+    test: idlharness.html
+  - subtest: 'CSS namespace: operation registerProperty(PropertyDefinition)'
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: existence and properties of interface object'
+    test: idlharness.html
+  - subtest: 'CSSPropertyRule interface: existence and properties of interface prototype
+      object'
+    test: idlharness.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1634401
+- product: chrome
+  results:
+  - test: register-property-syntax-parsing.html
+  url: https://crbug.com/882285
+- product: chrome
+  results:
+  - test: registered-property-computation.html
+  - test: registered-property-initial.html
+  - test: self-utils.html
+  - test: typedom.html
+  url: https://bugs.chromium.org/p/chromium/issues/detail?id=900119
+- product: chrome
+  results:
+  - subtest: Rule applied [<image>, url("http://a/"), false]
+    test: at-property.html
+  url: https://bugs.chromium.org/p/chromium/issues/detail?id=981537
+- product: chrome
+  results:
+  - subtest: Rule applied [<transform-function>, rotateX(0deg), false]
+    test: at-property.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg), false]
+    test: at-property.html
+  - subtest: Rule applied [<transform-list>, rotateX(0deg) translateX(10px), false]
+    test: at-property.html
+  - test: registered-property-initial.html
+  - test: registered-property-computation.html
+  url: https://bugs.chromium.org/p/chromium/issues/detail?id=911156
+- label: interop-2023-property
+  results:
+  - test: at-property-cssom.html
+  - test: at-property-viewport-units-dynamic.html
+  - test: register-property.html
+  - test: registered-property-computation.html
+  - test: registered-property-crosstalk.html
+  - test: registered-property-cssom.html
+  - test: at-property-animation.html
+  - test: at-property-stylesheets.html
+  - test: register-property-syntax-parsing.html
+  - test: registered-property-change-style-001.html
+  - test: registered-property-initial.html
+  - test: registered-property-revert.html
+  - test: at-property.html
+  - test: property-cascade.html
+  - test: at-property-viewport-units.html
+- product: chrome
+  results:
+  - subtest: syntax:'<image>', initialValue:'url(a)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<image>', initialValue:'linear-gradient(yellow, blue)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<color> | <image> | <url> | <integer> | <angle>', initialValue:'red'
+      is valid
+    test: register-property-syntax-parsing.html
+  url: https://crbug.com/981537
+- product: chrome
+  results:
+  - subtest: syntax:'<time> | <resolution> | <transform-list> | <custom-ident>', initialValue:'red'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function>', initialValue:'translateX(2px)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function>|<integer>', initialValue:'5' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function>|<integer>', initialValue:'scale(2)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function>+', initialValue:'translateX(2px) rotate(42deg)'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-list>', initialValue:'scale(2)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-list>', initialValue:'translateX(2px) rotate(20deg)'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: <transform-function> values are computed correctly [translateX(2px)]
+    test: registered-property-computation.html
+  - subtest: <transform-function> values are computed correctly [translateX(10em)]
+    test: registered-property-computation.html
+  - subtest: <transform-function> values are computed correctly [translateX(calc(11em
+      + 10%))]
+    test: registered-property-computation.html
+  - subtest: <transform-function>+ values are computed correctly [translateX(10%)
+      scale(2)]
+    test: registered-property-computation.html
+  - subtest: Initial value for <transform-function> correctly computed [rotate(42deg)]
+    test: registered-property-initial.html
+  - subtest: Initial value for <transform-list> correctly computed [scale(calc(2 +
+      2))]
+    test: registered-property-initial.html
+  - subtest: Initial value for <transform-list> correctly computed [scale(calc(2 +
+      1)) translateX(calc(3px + 1px))]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)), --x]
+    test: registered-property-initial.html
+  - subtest: Initial non-inherited value can be substituted [scale(calc(2 + 2)) translateX(calc(3px
+      + 1px)), --x]
+    test: registered-property-initial.html
+  - subtest: syntax:'<transform-list> | <transform-function> ', initialValue:'scale(2)
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function> | <transform-list>', initialValue:'scale(2)
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-list> | <transform-function>+ ', initialValue:'scale(2)
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function>+ | <transform-list>', initialValue:'scale(2)
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-list> | <transform-function># ', initialValue:'scale(2)
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function># | <transform-list>', initialValue:'scale(2)
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-list> | <transform-function># ', initialValue:'scale(2),
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<transform-function># | <transform-list>', initialValue:'scale(2),
+      rotate(90deg)' is valid
+    test: register-property-syntax-parsing.html
+  url: https://crbug.com/911156
+- product: chrome
+  results:
+  - subtest: <resolution> values are computed correctly [calc(1dppx + 96dpi)]
+    test: registered-property-computation.html
+  url: https://crbug.com/983613
+- product: safari
+  results:
+  - subtest: Ongoing animation picks up redeclared custom property
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared intial value
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared meaning of 'unset'
+    test: at-property-animation.html
+  url: https://bugs.webkit.org/show_bug.cgi?id=251509
+- product: firefox
+  results:
+  - test: at-property-stylesheets.html
+  - test: at-property-viewport-units.html
+  - test: at-property-viewport-units-dynamic.html
+  - test: at-property.html
+  - test: at-property-animation.html
+  - test: at-property-cssom.html
+  - test: at-property-shadow.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1684605
+- product: firefox
+  results:
+  - subtest: Registering a property does not affect parsing
+    test: property-cascade.html
+  - test: registered-property-crosstalk.html
+  - test: registered-property-cssom.html
+  - test: register-property.html
+  - test: registered-property-change-style-001.html
+  - test: register-property-syntax-parsing.html
+  - test: registered-property-revert.html
+  - test: registered-property-computation.html
+  - test: registered-property-initial.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1821552
+- product: chrome
+  results:
+  - subtest: syntax:'*', initialValue:'default' is valid
+    test: register-property-syntax-parsing.html
+  url: https://crbug.com/1344170
+- product: firefox
+  results:
+  - test: registered-property-revert.html
+  - test: at-property-animation.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1846516
+- product: firefox
+  results:
+  - test: registered-property-computation.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1866917
+- product: firefox
+  results:
+  - subtest: Non-inherited registered custom property can be reverted in animation
+    test: registered-property-revert.html
+  - subtest: Inherited registered custom property can be reverted in animation
+    test: registered-property-revert.html
+  - test: registered-property-revert.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1870348
+- product: firefox
+  results:
+  - test: at-property-animation.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1869185
+- product: firefox
+  results:
+  - subtest: '@keyframes works with @property'
+    test: at-property-animation.html
+  - subtest: '@keyframes picks up the latest @property in the document'
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared custom property
+    test: at-property-animation.html
+  - subtest: Ongoing animation matches new keyframes against the current registration
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared intial value
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared inherits flag
+    test: at-property-animation.html
+  - subtest: Ongoing animation picks up redeclared meaning of 'unset'
+    test: at-property-animation.html
+  - subtest: Transitioning from initial value
+    test: at-property-animation.html
+  - subtest: Transitioning from specified value
+    test: at-property-animation.html
+  - subtest: Transition triggered by initial value change
+    test: at-property-animation.html
+  - subtest: No transition when removing @property rule
+    test: at-property-animation.html
+  - subtest: Unregistered properties referencing animated properties update correctly.
+    test: at-property-animation.html
+  - subtest: Registered properties referencing animated properties update correctly.
+    test: at-property-animation.html
+  - subtest: CSS animation setting "inherit" for a custom property on a keyframe is
+      responsive to changing that custom property on the parent.
+    test: at-property-animation.html
+  - subtest: JS-originated animation setting "inherit" for a custom property on a
+      keyframe is responsive to changing that custom property on the parent.
+    test: at-property-animation.html
+  - subtest: CSS animation setting "currentColor" for a custom property on a keyframe
+      is responsive to changing "color" on the parent.
+    test: at-property-animation.html
+  - subtest: JS-originated animation setting "currentColor" for a custom property
+      on a keyframe is responsive to changing "color" on the parent.
+    test: at-property-animation.html
+  - test: at-property-animation.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1870370
+- product: safari
+  results:
+  - subtest: '@property rules in shadow trees should be globally registered'
+    test: at-property-shadow.html
+  url: https://bugs.webkit.org/show_bug.cgi?id=270586
+- product: firefox
+  results:
+  - test: at-property-shadow.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1891261
+- product: firefox
+  results:
+  - test: at-property-shadow.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1884872
+- product: firefox
+  results:
+  - subtest: <color> values are computed correctly [color(from lime srgb g g g)]
+    test: registered-property-computation.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1892492
+- product: firefox
+  results:
+  - test: register-property-syntax-parsing.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1918413
+- product: firefox
+  results:
+  - subtest: syntax:'<number>', initialValue:'calc(15 + (sign(100vh - 10px) * 5))'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<integer>', initialValue:'calc(15 + (sign(100vh - 10px) * 5))'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<angle>', initialValue:'calc(15deg + (sign(100vh - 10px) * 5deg))'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<time>', initialValue:'calc(15s + (sign(100vh - 10px) * 5s))'
+      is valid
+    test: register-property-syntax-parsing.html
+  - subtest: syntax:'<resolution>', initialValue:'calc(15dppx + (sign(100vh - 10px)
+      * 5dpi))' is valid
+    test: register-property-syntax-parsing.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1915981
+- product: safari
+  results:
+  - subtest: Attribute 'initial-value' makes the @property rule invalid for [var(--x)]
+    test: at-property.html
+  url: https://bugs.webkit.org/show_bug.cgi?id=279751
+- product: firefox
+  results:
+  - subtest: syntax:'<length>', initialValue:'calc(5px * 3px / 6px)' is valid
+    test: initial-value-unit-arithmetic.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1937844
diff --git a/css/css-properties-values-api/animation/META.yml b/css/css-properties-values-api/animation/META.yml
index 54f823965..bf72d7326 100644
--- a/css/css-properties-values-api/animation/META.yml
+++ b/css/css-properties-values-api/animation/META.yml
@@ -122,3 +122,18 @@ links:
       values and with mismatching list lengths
     test: custom-property-animation-transform-list-multiple-values.html
   url: https://bugzilla.mozilla.org/show_bug.cgi?id=1874775
+- product: firefox
+  results:
+  - subtest: Animating a custom property of type <length-percentage># with iterationComposite
+    test: custom-property-animation-length-percentage-comma-list.html
+  - subtest: Animating a custom property of type <length-percentage>+ with iterationComposite
+    test: custom-property-animation-length-percentage-space-list.html
+  - subtest: Animating a custom property of type <transform-function> with additivity
+    test: custom-property-animation-transform-function.html
+  - subtest: Animating a custom property of type <transform-function> with a single
+      keyframe and additivity
+    test: custom-property-animation-transform-function.html
+  - subtest: 'A custom property can yield a CSS Transition with transition-property:
+      all'
+    test: custom-property-transition-property-all.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1937844