.stylelintrc.json

{
  "plugins": [
    "stylelint-order"
  ],
  "extends": "stylelint-config-property-sort-order-smacss",
  "rules": {
      "comment-empty-line-before": [ "always", {
        "except": ["first-nested"],
        "ignore": ["stylelint-commands"]
      } ],
      "comment-whitespace-inside": "always",
      "custom-property-empty-line-before": [ "always", {
        "except": [
          "after-custom-property",
          "first-nested"
        ],
        "ignore": [
          "after-comment",
          "inside-single-line-block"
        ]
      } ],
      "declaration-empty-line-before": [ "always", {
        "except": [
          "after-declaration",
          "first-nested"
        ],
        "ignore": [
          "after-comment",
          "inside-single-line-block"
        ]
      } ],
      "function-name-case": "lower",
      "length-zero-no-unit": true,
      "rule-empty-line-before": [ "always-multi-line", {
        "except": ["first-nested"],
        "ignore": ["after-comment"]
      } ],
      "selector-pseudo-element-colon-notation": "double",
      "selector-type-case": "lower"
    }
}