.stylelintrc

{
  "extends": "stylelint-config-standard",
  "rules": {
    "color-hex-case": "lower",
    "color-hex-length":"short",
    "color-named":"never",
    "color-no-hex":null,
    "color-no-invalid-hex":true,
    "font-family-name-quotes":"always-where-recommended",
    "font-family-no-duplicate-names":true,
    "font-weight-notation":"numeric",
    "function-calc-no-unspaced-operator":true,
    "function-comma-newline-after":"never-multi-line",
    "function-comma-newline-before":"never-multi-line",
    "function-comma-space-after": "always",
    "function-comma-space-before":"never",
    "function-name-case":"lower",
    "function-parentheses-newline-inside":"never-multi-line",
    "function-parentheses-space-inside":"never",
    "function-url-quotes":"always",
    "function-whitespace-after":"always",
    "number-leading-zero":"never",
    "number-max-precision":2,
    "number-no-trailing-zeros":true,
    "string-no-newline":true,
    "string-quotes":"double",
    "length-zero-no-unit":true,
    "unit-blacklist":["mm", "cm", "dpi", "dpcm", "dppx", "in", "pc", "pt"],
    "unit-case":"lower",
    "unit-no-unknown":true,
    "value-keyword-case":"lower",
    "value-no-vendor-prefix":true,
    "value-list-comma-newline-after":"never-multi-line",
    "value-list-comma-newline-before":"never-multi-line",
    "value-list-comma-space-after":"always",
    "value-list-comma-space-before":"never",
    "value-list-max-empty-lines":0,
    "shorthand-property-no-redundant-values":true,
    "property-case":"lower",
    "property-no-unknown":true,
    "property-no-vendor-prefix":true,
    "declaration-colon-space-after":"always",
    "declaration-colon-space-before":"never",
    "declaration-empty-line-before":"never",
    "declaration-no-important":true,
    "declaration-block-no-redundant-longhand-properties":true,
    "declaration-block-no-shorthand-property-overrides":true,
    "declaration-block-semicolon-newline-after":"always",
    "declaration-block-semicolon-newline-before":"never-multi-line",
    "declaration-block-single-line-max-declarations":1,
    "declaration-block-trailing-semicolon":"always",
    "block-closing-brace-empty-line-before":"never",
    "block-closing-brace-newline-after":"always",
    "block-closing-brace-newline-before":"always",
    "block-no-empty": true,
    "block-opening-brace-newline-after": "always",
    "block-opening-brace-newline-before": "always-single-line",
    "rule-empty-line-before": "always",
    "comment-empty-line-before": "always",
    "comment-no-empty": true,
    "comment-whitespace-inside": "always",
    "indentation": 2,
    "max-empty-lines": 3,
    "max-line-length": 120,
    "max-nesting-depth": 4,
    "no-duplicate-selectors": true,
    "no-empty-source": true,
    "no-eol-whitespace": true,
    "no-extra-semicolons": true,
    "no-invalid-double-slash-comments": true,
    "no-missing-end-of-source-newline": true
  }
}