.stylelintrc

{
  "extends": "stylelint-config-standard",
  "rules": {
    "indentation": 2,
    "string-quotes": "double",
    "no-duplicate-selectors": true,
    "color-hex-case": "lower",
    "color-hex-length": "short",
    "color-named": "never",
    "selector-no-qualifying-type":  [ true, {"ignore": "attribute"} ],
    "selector-max-id": 1,
    "selector-max-attribute": 1,
    "selector-combinator-space-after": "always",
    "selector-attribute-quotes": "always",
    "selector-attribute-operator-space-before": "always",
    "selector-attribute-operator-space-after": "always",
    "selector-attribute-brackets-space-inside": "never",
    "declaration-block-trailing-semicolon": "always",
    "declaration-no-important": true,
    "declaration-colon-space-before": "never",
    "declaration-colon-space-after": "always",
    "property-no-vendor-prefix": true,
    "value-no-vendor-prefix": true,
    "number-leading-zero": "never",
    "function-url-quotes": "always",
    "font-weight-notation": "numeric",
    "font-family-name-quotes": "always-where-recommended",
    "comment-whitespace-inside": "always",
    "comment-empty-line-before": "always",
    "at-rule-no-vendor-prefix": true,
    "rule-empty-line-before": ["always", {
      "except": [
        "after-single-line-comment",
        "inside-block-and-after-rule"
      ],
      "ignore": [
        "after-comment",
        "inside-block"
      ]
    }],
    "selector-pseudo-element-colon-notation": "double",
    "selector-pseudo-class-parentheses-space-inside": "never",
    "selector-no-vendor-prefix": true,
    "selector-max-universal": 1,
    "selector-max-type": 1,
    "media-feature-range-operator-space-before": "always",
    "media-feature-range-operator-space-after": "always",
    "media-feature-parentheses-space-inside": "never",
    "media-feature-name-no-vendor-prefix": true,
    "media-feature-colon-space-before": "never",
    "media-feature-colon-space-after": "always",
    "declaration-block-no-duplicate-properties": true,
    "declaration-block-no-redundant-longhand-properties": [ true, {"ignoreShorthands": "font"} ],
    "no-eol-whitespace": true
  },
  "ignoreFiles": [
    "./src/index.css"
  ],
  "ignoreShorthands": [
    "font"
  ]
}