.stylelintrc

{
"rules": {
    "block-closing-brace-empty-line-before": "never",
    "block-closing-brace-newline-after": "always",
    "block-closing-brace-newline-before": "always-multi-line",
    "block-no-empty": true,
    "block-opening-brace-newline-after": "always-multi-line",
    "block-opening-brace-space-before": "always",
    "color-hex-case": ["lower", {
      "message": "Use lowercase hex codes for better readability."
    }],
    "color-hex-length": ["short", {
      "message": "Use shorthand hex codes when possible"
    }],
    "color-named": ["never", {
      "message": "Please use a PatternFly variable or hex value for color declarations."
    }],
    "color-no-invalid-hex": [true, {
      "message": "You must use a valid hex code.",
      "severity": "error"
    }],
    "comment-empty-line-before": [ "always", {
      "ignore": ["stylelint-commands", "after-comment"]
    } ],
    "comment-no-empty": true,
    "comment-whitespace-inside": "always",
    "declaration-block-no-duplicate-properties": [true, {
      "ignore": ["consecutive-duplicates-with-different-values"]
    }],
    "declaration-block-semicolon-newline-before": "never-multi-line",
    "declaration-block-semicolon-newline-after": "always-multi-line",
    "declaration-block-semicolon-space-before": "never",
    "declaration-block-semicolon-space-after": "always-single-line",
    "declaration-block-single-line-max-declarations": [1, {
      "message": "More than one declaration requires multiple lines.",
      "severity": "warning"
    }],
    "declaration-block-trailing-semicolon": "always",
    "declaration-no-important": [true, {
      "message": "If this is necessary, you must get approval for a line item exclusion.",
      "severity": "error"
    }],
    "font-family-name-quotes": "always-where-recommended",
    "font-family-no-duplicate-names": true,
    "function-calc-no-unspaced-operator": true,
    "function-comma-space-after": "always-single-line",
    "function-comma-space-before": "never",
    "function-name-case": "lower",
    "function-parentheses-newline-inside": "never-multi-line",
    "function-url-quotes": "always",
    "function-whitespace-after": "always",
    "indentation": [ 2, {
      "ignore": ["inside-parens", "param", "value"],
      "message": "Please use 2 spaces for indentation. Tabs make The Framework grumpy.",
      "severity": "warning"
    } ],
    "length-zero-no-unit": true,
    "keyframe-declaration-no-important": true,
    "media-feature-name-no-unknown": true,
    "no-duplicate-at-import-rules": [true, {
      "message": "You cannot import the same thing twice."
    }],
    "no-eol-whitespace": true,
    "no-extra-semicolons": [true, {
      "message": "You have extra semicolons - please remove them.",
      "severity": "error"
    }],
    "no-invalid-double-slash-comments": [true, {
      "message": "Double Slash `//` comments are not supported by CSS."
    }],
    "no-unknown-animations": true,
    "number-leading-zero": ["never", {
      "message": "Do not add zeros before a number.",
      "severity": "error"
    }],
    "number-max-precision": 3,
    "number-no-trailing-zeros": null,
    "property-case": "lower",
    "rule-empty-line-before": ["always", {
      "except": ["after-single-line-comment",
                 "inside-block-and-after-rule",
                 "inside-block",
                 "first-nested"],
      "ignore": ["after-comment"]
    }],
    "selector-attribute-brackets-space-inside": "never",
    "selector-attribute-operator-space-after": "never",
    "selector-attribute-operator-space-before": "never",
    "selector-descendant-combinator-no-non-space": true,
    "selector-list-comma-newline-after": "always-multi-line",
    "selector-list-comma-newline-before": "never-multi-line",
    "selector-list-comma-space-after": "never-single-line",
    "selector-list-comma-space-before": "never",
    "selector-pseudo-class-case": "lower",
    "selector-pseudo-class-parentheses-space-inside": "never",
    "selector-pseudo-element-case": "lower",
    "selector-pseudo-element-colon-notation": "single",
    "selector-pseudo-element-no-unknown": true,
    "selector-type-case": "lower",
    "shorthand-property-no-redundant-values": true,
    "string-no-newline": true,
    "string-quotes": "single",
    "unit-case": "lower",
    "unit-no-unknown": true,
    "unit-whitelist": [
      "px",
      "%",
      "deg",
      "s",
      "ms",
      "em",
      "rem",
      "vh",
      "vw",
      "fr"
    ],
    "value-list-comma-space-after": "always-single-line",
    "value-list-comma-space-before": "never",
    "value-no-vendor-prefix": [true, {
      "message": "You should use an autoprefixer to add vendor prefixes.",
      "severity": "warning"
    }]
  }
}