.stylelintrc.json

{
    "extends": ["stylelint-config-standard"],
    "plugins": ["stylelint-scss", "stylelint-csstree-validator"],
    "rules": {
      "at-rule-no-unknown": null,
      "scss/at-rule-no-unknown": true,
      "csstree/validator": true
    },
    "ignoreFiles": ["build/**", "dist/**", "**/reset*.css", "**/bootstrap*.css"]
}