.prettierrc

{
  "printWidth": 80,
  "trailingComma": "es5",
  "semi": true,
  "singleQuote": true,
  "arrowParens": "avoid",
  "bracketSpacing": false
}

.stylelintrc

{
  "extends": "stylelint-config-standard",
  "plugins": ["stylelint-order"],
  "rules": {
    "order/order": ["custom-properties","declarations"],
    "no-descending-specificity": [true, {"severity": "warning" }],
    "no-empty-first-line": true,
    "color-no-invalid-hex": true,
    "font-family-no-duplicate-names": true,
    "max-empty-lines": 1,
    "indentation": 2,
    "order/properties-alphabetical-order": true
  }
}

package.json

{
  "husky": {
    "hooks": {
      "pre-commit": "check staged"
    }
  },
  "dependencies": {
    "check": "shfx/check",
    "eslint": "^5.16.0",
    "husky": "^2.3.0",
    "stylelint": "^10.0.1",
    "stylelint-config-standard": "^18.3.0",
    "stylelint-order": "^3.0.0"
  }
}