.stylelintrc

{
  "extends": "stylelint-config-recommended",
  "plugins": [
    "stylelint-order"
  ],
  "rules": {
    "at-rule-no-unknown": true,
    "at-rule-no-vendor-prefix": true,
    "block-opening-brace-space-before": "always-multi-line",
    "color-hex-case": "lower",
    "color-hex-length": "long",
    "color-named": "never",
    "declaration-block-no-duplicate-properties": true,
    "declaration-block-semicolon-newline-after": "always",
    "declaration-block-semicolon-newline-before": "never-multi-line",
    "declaration-block-trailing-semicolon": "always",
    "declaration-colon-space-after": "always",
    "declaration-colon-space-before": "never",
    "declaration-empty-line-before": ["never", {
      "ignore": ["after-declaration"]
    }],
    "declaration-no-important": true,
    "font-family-name-quotes": "always-unless-keyword",
    "font-weight-notation": "numeric",
    "function-calc-no-unspaced-operator": true,
    "function-max-empty-lines": 1,
    "function-url-quotes": "always",
    "indentation": 2,
    "length-zero-no-unit": true,
    "max-empty-lines": 2,
    "max-nesting-depth": 3,
    "media-feature-colon-space-after": "always",
    "media-feature-colon-space-before": "never",
    "media-feature-name-blacklist": "max-width",
    "media-feature-name-no-vendor-prefix": true,
    "media-feature-parentheses-space-inside": "never",
    "media-feature-range-operator-space-after": "always",
    "media-feature-range-operator-space-before": "always",
    "no-duplicate-selectors": true,
    "no-descending-specificity": null,
    "no-unknown-animations": true,
    "number-max-precision": 8,
    "number-no-trailing-zeros": true,
    "property-no-unknown": true,
    "property-no-vendor-prefix": true,
    "rule-empty-line-before": ["always-multi-line", { "except": ["first-nested"], "ignore": ["after-comment"] }],
    "selector-attribute-brackets-space-inside": "never",
    "selector-attribute-quotes": "always",
    "selector-attribute-operator-space-after": "never",
    "selector-attribute-operator-space-before": "never",
    "selector-max-compound-selectors": 3,
    "selector-class-pattern":"^(?:(?:o|c|u|t|s|is|has|_|js|qa)-)?[a-z]+(?:-[a-z]+)*(?:__[a-z]+(?:-[a-z]+)*)?(?:--[a-z]+(?:-[a-z]+)*)?(?:\\[.+\\])?$",
    "selector-combinator-space-after": "always",
    "selector-max-id": 0,
    "selector-max-universal": 0,
    "selector-max-pseudo-class": 1,
    "selector-max-specificity": "0,2,1",
    "selector-max-type": [0, {"ignore": "child"}],
    "selector-no-vendor-prefix": true,
    "selector-pseudo-class-no-unknown": [true, {
      "ignorePseudoClasses": ["global"]
    }],
    "selector-no-qualifying-type": true,
    "string-quotes": "double",
    "time-min-milliseconds": 100,
    "unit-blacklist": ["pt"],
    "declaration-property-value-blacklist": {
      "position": ["fixed"],
      "border": ["none"]
    },
    "value-keyword-case": "lower",
    "value-list-comma-newline-before": "never-multi-line",
    "value-no-vendor-prefix": true,
    "order/order": [
      [
        "custom-properties",
        "declarations",
        "at-variables",
        "dollar-variables",
        "less-mixins",
        {
          "type": "at-rule",
          "name": "include"
        },
        "rules"
      ]
    ],
    "order/properties-alphabetical-order": true
  }
}