diff --git a/packages/base-styles/_variables.scss b/packages/base-styles/_variables.scss
index 404e8b25c87aef..099d53817829b8 100644
--- a/packages/base-styles/_variables.scss
+++ b/packages/base-styles/_variables.scss
@@ -75,7 +75,7 @@ $block-toolbar-height: $grid-unit-60;
$mobile-block-toolbar-height: 44px;
$block-padding: 14px; // Space between block footprint and focus boundaries. These are drawn outside the block footprint, and do not affect the size.
$block-spacing: 4px; // Vertical space between blocks.
-$block-side-ui-width: 28px; // Width of the movers/drag handle UI.
+$block-side-ui-width: $button-size; // Width of the movers/drag handle UI.
$block-side-ui-clearance: 2px; // Space between movers/drag handle UI, and block.
$block-container-side-padding: $block-side-ui-width + $block-padding + 2 * $block-side-ui-clearance; // Total space left and right of the block footprint.
$block-bg-padding--v: $block-padding + $block-spacing + $block-side-ui-clearance; // padding for Blocks with a background color (eg: paragraph or group)
diff --git a/packages/block-editor/src/components/block-list/root-container.js b/packages/block-editor/src/components/block-list/root-container.js
index 1ca09351851667..72783ad80c5f61 100644
--- a/packages/block-editor/src/components/block-list/root-container.js
+++ b/packages/block-editor/src/components/block-list/root-container.js
@@ -1,3 +1,8 @@
+/**
+ * External dependencies
+ */
+import classnames from 'classnames';
+
/**
* WordPress dependencies
*/
@@ -85,7 +90,7 @@ function RootContainer( { children, className, hasPopover = true }, ref ) {
{ hasPopover ?