.stylelintrc

{
  "processors": ["stylelint-processor-html"],
  "extends": "stylelint-config-standard",
  "plugins": [
    "stylelint-scss"
  ],
  "rules": {
    "font-family-name-quotes": "always-unless-keyword",
    "string-quotes": "double",
    "value-keyword-case": "lower",
    "max-empty-lines": 2,
    "indentation": "tab",
    "no-empty-source": null,

    "scss/at-if-closing-brace-newline-after": "always-last-in-chain",
    "at-rule-empty-line-before": [
      "always",
      {
        "ignore": ["after-comment"],
        "ignoreAtRules": ["else"],
        "except": ["first-nested", "after-same-name"]
      }
    ],
    "at-rule-no-unknown": [ true, {
      "ignoreAtRules": ["extend", "at-root", "debug", "warn", "error", "if", "else", "for", "each", "while", "mixin", "include", "content", "return", "function"]
    }],
    "rule-empty-line-before": [
      "always",
      {
        "ignore": ["after-comment"],
        "except": ["first-nested"]
      }
    ],
    "comment-empty-line-before": [
      "always",
      {
        "ignore": ["after-comment"],
        "except": ["first-nested"]
      }
    ],
    "block-closing-brace-newline-after": [
      "always",
      {
        "ignoreAtRules": ["if"]
      }
    ],
    "no-eol-whitespace": [
      true,
      {
        "ignore": ["empty-lines"]
      }
    ]
  }
}