.csslintrc

{
    "extends": "stylelint-config-standard",
    "customSyntax": "postcss-less",
    "rules": {
      "font-family-no-missing-generic-family-keyword": null,
      "declaration-block-single-line-max-declarations": null,
      "declaration-empty-line-before": null,
      "max-line-length": [80, {
        ignorePattern: "/^@import\\s+/",
      }],
      "function-no-unknown": [true, {
        ignoreFunctions: [
          "data-uri",
          "lighten",
          "percentage",
        ],
      }],
      "property-no-vendor-prefix": null,
      "selector-list-comma-newline-after": "always-multi-line",
      "selector-no-vendor-prefix": null,
      "selector-pseudo-element-colon-notation": "single",
      "unit-allowed-list": ["em", "%", "px", "s", "deg", "vmin", "ms", "vh"]
    }
}