Initial Stylelint

.stylelintrc

{
  "extends": "stylelint-config-standard",
  "rules": {
    "at-rule-no-vendor-prefix": true,
    "at-rule-semicolon-space-before": "never",
    "block-closing-brace-space-after": "always-single-line",
    "color-named": "never",
    "declaration-block-semicolon-newline-before": "never-multi-line",
    "declaration-no-important": true,
    "font-family-name-quotes": "always-unless-keyword",
    "function-comma-newline-before": "never-multi-line",
    "function-url-quotes": "always",
    "max-line-length": [ 80, {
      "ignorePattern": ["/^@import\\s+/"]
    }],
    "max-nesting-depth": 3,
    "media-feature-name-no-vendor-prefix": true,
    "media-query-list-comma-newline-before": "never-multi-line",
    "number-max-precision": 4,
    "property-no-vendor-prefix": true,
    "selector-attribute-quotes": "always",
    "selector-max-id": 0,
    "selector-max-specificity": "1,0,0",
    "selector-max-type": 2,
    "selector-max-universal": 1,
    "selector-no-vendor-prefix": true,
    "selector-pseudo-class-blacklist": "/^nth-/",
    "selector-pseudo-element-colon-notation": "single",
    "string-quotes": "double",
    "unit-no-unknown": true,
    "value-keyword-case": "lower"
  }
}