.stylelintrc.yml

# We are using stylelint-config-standard for all of the base rules designed more broadly
# for CSS. The stylelint-scss plugin provides us with more SCSS specific rules. Those
# rules are prefixed by `scss/`
extends: stylelint-config-standard
plugins:
   - stylelint-scss
rules:
   # Turn off the following rule since our ltr/rtl approach generally violates it.
   no-descending-specificity: null
   # Turn off config-standard rule in favor of the scss/at-rule-no-unknown rule
   at-rule-no-unknown: null
   scss/at-rule-no-unknown: true
   # General rules
   indentation: 3
   linebreaks: unix
   no-eol-whitespace: true
   no-missing-end-of-source-newline: true
   no-empty-first-line: true
   max-line-length:
      - 140
      - ignorePattern:
         - /https?://[0-9,a-z]*.*/
   max-empty-lines: 1
   string-quotes: single
   string-no-newline: true
   color-hex-case: lower
   color-hex-length: long
   color-no-invalid-hex: true
   no-invalid-position-at-import-rule: null
   number-leading-zero: always
   number-no-trailing-zeros: true
   unit-case: lower
   unit-no-unknown: true
   property-no-unknown: true
   block-no-empty: true
   value-keyword-case: lower
   length-zero-no-unit: true
   function-comma-space-after: always-single-line
   function-comma-space-before: never
   function-parentheses-space-inside: never-single-line
   function-linear-gradient-no-nonstandard-direction: true
   function-calc-no-invalid: true
   function-calc-no-unspaced-operator: true
   selector-pseudo-class-no-unknown: true
   selector-pseudo-element-no-unknown: true
   selector-type-no-unknown: true
   declaration-block-no-duplicate-properties: true
   declaration-block-no-shorthand-property-overrides: true
   declaration-colon-space-after: always
   declaration-colon-space-before: never
   declaration-block-trailing-semicolon: always
   declaration-empty-line-before: never
   comment-whitespace-inside: always
   rule-empty-line-before:
      - always
      - ignore:
         - after-comment
         - inside-block
   # Collection of rules for if/else statements
   at-rule-empty-line-before:
      - always
      - ignoreAtRules:
         - else
        ignore:
         - after-comment
         - first-nested
         - inside-block
         - blockless-after-same-name-blockless
   block-opening-brace-space-before: always
   block-closing-brace-newline-after:
      - always
      - ignoreAtRules:
         - if
         - else
   at-rule-name-space-after: always
   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-if-closing-brace-newline-after: always-last-in-chain
   scss/at-if-closing-brace-space-after: always-intermediate
   # End collection of rules for if/else statements
   scss/at-extend-no-missing-placeholder: true
   scss/at-function-parentheses-space-before: never
   scss/at-mixin-parentheses-space-before: never