.stylelintrc

{
  "plugins": ["stylelint-prettier", "stylelint-scss"],
  "extends": ["stylelint-prettier/recommended"],
  "rules": {
    "color-hex-case": "lower",
    "color-no-invalid-hex": true,

    "function-calc-no-unspaced-operator": true,
    "function-comma-space-after": "always-single-line",
    "function-comma-space-before": "never",
    "function-name-case": "lower",
    "function-url-quotes": "always",
    "function-url-scheme-blacklist": ["data"],
    "function-whitespace-after": "always",

    "number-leading-zero": "always",
    "number-no-trailing-zeros": true,
    "length-zero-no-unit": true,

    "string-no-newline": true,
    "string-quotes": "single",

    "unit-case": "lower",
    "unit-no-unknown": true,
    "unit-whitelist": [
      "px",
      "%",
      "deg",
      "ms",
      "em",
      "rem",
      "ch",
      "vh",
      "vw",
      "vmin",
      "s",
      "fr"
    ],

    "value-list-comma-space-after": "always-single-line",
    "value-list-comma-space-before": "never",

    "shorthand-property-no-redundant-values": true,

    "property-case": "lower",
    "no-duplicate-at-import-rules": true,

    "declaration-block-no-duplicate-properties": [
      true,
      {
        "ignore": ["consecutive-duplicates-with-different-values"]
      }
    ],
    "declaration-block-trailing-semicolon": "always",
    "declaration-block-single-line-max-declarations": 1,
    "declaration-block-semicolon-space-before": "never",
    "declaration-block-semicolon-space-after": "always-single-line",
    "declaration-block-semicolon-newline-before": "never-multi-line",
    "declaration-block-semicolon-newline-after": "always-multi-line",
    "declaration-property-value-blacklist": [
      { "/.*/": ["initial"] },
      { "message": "The `initial` value is not supported in IE." }
    ],

    "block-closing-brace-newline-after": [
      "always",
      {
        "ignoreAtRules": ["if", "else"]
      }
    ],
    "block-closing-brace-newline-before": "always-multi-line",
    "block-opening-brace-newline-after": "always-multi-line",
    "block-opening-brace-space-before": "always-multi-line",

    "selector-attribute-brackets-space-inside": "never",
    "selector-attribute-operator-space-after": "never",
    "selector-attribute-operator-space-before": "never",
    "selector-combinator-space-after": "always",
    "selector-pseudo-class-case": "lower",
    "selector-pseudo-class-parentheses-space-inside": "never",
    "selector-pseudo-element-case": "lower",
    "selector-pseudo-element-colon-notation": "double",
    "selector-pseudo-element-no-unknown": [
      true,
      {
        "ignorePseudoElements": ["ng-deep"]
      }
    ],
    "selector-type-case": "lower",
    "selector-max-id": 0,
    "no-missing-end-of-source-newline": true,
    "no-eol-whitespace": true,
    "max-line-length": 80,
    "linebreaks": "unix",
    "selector-class-pattern": [
      "^_?(dt-|ba-|cdk-|design-tokens-ui-|fluid-)",
      {
        "resolveNestedSelectors": true
      }
    ],

    "property-no-vendor-prefix": true,
    "value-no-vendor-prefix": true,
    "selector-no-vendor-prefix": true,

    "scss/at-else-closing-brace-newline-after": "always-last-in-chain",
    "scss/at-else-closing-brace-space-after": "always-intermediate",
    "scss/at-else-empty-line-before": "never",
    "scss/at-else-if-parentheses-space-before": "always",
    "scss/at-extend-no-missing-placeholder": true,
    "scss/at-function-parentheses-space-before": "never",
    "scss/at-if-closing-brace-newline-after": "always-last-in-chain",
    "scss/at-if-closing-brace-space-after": "always-intermediate",
    "scss/at-import-no-partial-leading-underscore": true,
    "scss/at-mixin-argumentless-call-parentheses": "always",
    "scss/at-mixin-parentheses-space-before": "never",
    "scss/at-rule-no-unknown": true,
    "scss/declaration-nested-properties": null,
    "scss/declaration-nested-properties-no-divided-groups": true,
    "scss/dollar-variable-colon-space-after": "always-single-line",
    "scss/dollar-variable-colon-space-before": "never",
    "scss/dollar-variable-default": null,
    "scss/dollar-variable-empty-line-before": null,
    "scss/dollar-variable-no-missing-interpolation": true,
    "scss/double-slash-comment-empty-line-before": null,
    "scss/double-slash-comment-inline": null,
    "scss/double-slash-comment-whitespace-inside": "always",
    "scss/media-feature-value-dollar-variable": null,
    "scss/operator-no-newline-before": true,
    "scss/operator-no-unspaced": true,
    "scss/selector-no-redundant-nesting-selector": true
  }
}