.stylelintrc

{
  "extends": "stylelint-config-standard",
  "rules": {
    "rule-empty-line-before": ["always", {
      "ignore": ["inside-block"],
      "except": ["first-nested", "inside-block-and-after-rule"]
    }],
    "color-hex-case": "upper",
    "max-nesting-depth": 4,
    "no-empty-source": null,
    "selector-class-pattern": ["^[a-z]+([a-z0-9]?|[a-z0-9\\-]*[a-z0-9])$", {
      "message": "Please name CSS classes like this: 'this-is-class-name'",
      "severity": "warning"
    }],
    "unit-no-unknown": [true, {
      "ignoreUnits": ["rpx", "dpx"]
    }]
  }
}