.stylelintrc

{
  "rules": {
    "selector-list-comma-newline-after": "always",
    "declaration-colon-space-after": "always",
    "declaration-colon-space-before": "never",
    "block-opening-brace-space-before": "always",
    "declaration-block-single-line-max-declarations": 1,
    "at-rule-blacklist": ["extend"],
    "max-nesting-depth": 3,
    "declaration-no-important": true,
    "selector-max-compound-selectors": 3,
    "selector-no-qualifying-type": true,
    "no-duplicate-selectors": true,
    "block-no-empty": true,
    "at-rule-name-case": "lower",
    "color-hex-case": "lower",
    "color-hex-length": "long",
    "color-no-invalid-hex": true,
    "value-no-vendor-prefix": true,
    "value-list-comma-space-after": "always-single-line",
    "shorthand-property-no-redundant-values": true,
    "comment-whitespace-inside": "always",
    "function-comma-space-after": "always-single-line",
    "function-comma-space-before": "never",
    "length-zero-no-unit": true,
    "number-no-trailing-zeros": true,
    "declaration-block-trailing-semicolon": "always",
    "declaration-block-no-duplicate-properties": true,
    "declaration-block-semicolon-newline-after": "always",
    "block-closing-brace-newline-before": "always"
  }
}