.stylelintrc

{
  "extends": "stylelint-config-standard-scss",
  "plugins": [
    "stylelint-order"
  ],
  "rules": {
    "alpha-value-notation": "number",
    "color-function-notation": "legacy",
    "color-no-invalid-hex": true,
    "max-line-length": [
      120,
      {
        "ignorePattern": "/(filter|transition): /"
      }
    ],
    "order/properties-alphabetical-order": true,
    "selector-class-pattern": [
      "^([a-z][a-z0-9]*)(-(-*)[a-z0-9]+)*$",
      {
        "resolveNestedSelectors": true,
        "severity": "warning"
      }
    ],
    "selector-id-pattern": [
      "^([a-z][a-z0-9]*)(-[a-z0-9]+)*$",
      {
        "severity": "warning"
      }
    ],
    "scss/at-extend-no-missing-placeholder": null,
    "scss/at-if-no-null": [
      true,
      {
        "severity": "warning"
      }
    ],
    "scss/no-global-function-names": [
      true,
      {
        "severity": "warning"
      }
    ]
  },
  "overrides": [
    {
      "files": [
        "css/**/*.css",
        "_sass/**/*.scss"
      ],
      "rules": {
        "no-descending-specificity": [
          true,
          {
            "severity": "warning"
          }
        ],
        "no-duplicate-selectors": [
          true,
          {
            "severity": "warning"
          }
        ]
      }
    }
  ]
}