.stylelintrc

{
  "extends": ["stylelint-config-recommended", "stylelint-config-html"],
  "plugins": ["stylelint-order"],
  "rules": {
    "no-duplicate-selectors": true,
    "no-empty-source": null,
    "selector-type-no-unknown": [
      true,
      {
        "ignore": ["custom-elements"]
      }
    ],
    "block-closing-brace-newline-after": "always",
    "block-closing-brace-newline-before": "always-multi-line",
    "block-closing-brace-space-before": "always-single-line",
    "block-opening-brace-newline-after": "always-multi-line",
    "block-opening-brace-space-after": "always-single-line",
    "block-opening-brace-space-before": "always",
    "color-hex-case": "lower",
    "color-hex-length": "short",
    "declaration-colon-space-after": "always",
    "declaration-colon-space-before": "never",
    "no-descending-specificity": null,
    "order/properties-alphabetical-order": true,
    "length-zero-no-unit": true
  },

  "overrides": [
    {
      "files": ["**/*.css"],
      "rules": {
        "indentation": 2,
        "no-descending-specificity": true
      }
    }
  ]
}