.stylelintrc.json

{
	"rules": {
		"alpha-value-notation": [
			"percentage",
			{
				"exceptProperties": [
					"opacity",
					"fill-opacity",
					"flood-opacity",
					"stop-opacity",
					"stroke-opacity"
				]
			}
		],
		"annotation-no-unknown": true,
		"at-rule-empty-line-before": [
			"always",
			{
				"except": [
					"blockless-after-same-name-blockless",
					"first-nested"
				],
				"ignore": [
					"after-comment"
				]
			}
		],
		"at-rule-no-unknown": true,
		"at-rule-no-vendor-prefix": true,
		"block-no-empty": true,
		"color-function-notation": "modern",
		"color-hex-length": "short",
		"color-no-invalid-hex": true,
		"comment-empty-line-before": [
			"always",
			{
				"except": [
					"first-nested"
				],
				"ignore": [
					"stylelint-commands"
				]
			}
		],
		"comment-no-empty": true,
		"comment-whitespace-inside": "always",
		"custom-media-pattern": [
			"^([a-z][a-z0-9]*)(-[a-z0-9]+)*$",
			{
				"message": "(name) => `Expected custom media query name \"${name}\" to be kebab-case`"
			}
		],
		"custom-property-no-missing-var-function": true,
		"custom-property-pattern": [
			"^([a-z][a-z0-9]*)(-[a-z0-9]+)*$",
			{
				"message": "(name) => `Expected custom property name \"${name}\" to be kebab-case`"
			}
		],
		"declaration-block-no-duplicate-custom-properties": true,
		"declaration-block-no-duplicate-properties": [
			true,
			{
				"ignore": [
					"consecutive-duplicates-with-different-values"
				]
			}
		],
		"declaration-block-no-redundant-longhand-properties": true,
		"declaration-block-no-shorthand-property-overrides": true,
		"declaration-empty-line-before": [
			"always",
			{
				"except": [
					"after-declaration",
					"first-nested"
				],
				"ignore": [
					"after-comment",
					"inside-single-line-block"
				]
			}
		],
		"font-family-name-quotes": "always-where-recommended",
		"font-family-no-duplicate-names": true,
		"font-family-no-missing-generic-family-keyword": true,
		"function-calc-no-unspaced-operator": true,
		"function-linear-gradient-no-nonstandard-direction": true,
		"function-name-case": "lower",
		"function-no-unknown": true,
		"function-url-quotes": "always",
		"hue-degree-notation": "number",
		"import-notation": "url",
		"keyframe-block-no-duplicate-selectors": true,
		"keyframe-declaration-no-important": true,
		"keyframe-selector-notation": "percentage-unless-within-keyword-only-block",
		"keyframes-name-pattern": [
			"^([a-z][a-z0-9]*)(-[a-z0-9]+)*$",
			{
				"message": "(name) => `Expected keyframe name \"${name}\" to be kebab-case`"
			}
		],
		"length-zero-no-unit": true,
		"media-feature-name-no-unknown": true,
		"media-feature-name-no-vendor-prefix": true,
		"named-grid-areas-no-invalid": true,
		"no-duplicate-at-import-rules": true,
		"no-duplicate-selectors": true,
		"no-empty-source": true,
		"no-invalid-double-slash-comments": true,
		"no-invalid-position-at-import-rule": true,
		"no-irregular-whitespace": true,
		"number-max-precision": 4,
		"property-no-unknown": true,
		"rule-empty-line-before": [
			"always-multi-line",
			{
				"except": [
					"first-nested"
				],
				"ignore": [
					"after-comment"
				]
			}
		],
		"selector-attribute-quotes": "always",
		"selector-class-pattern": [
			"^([a-z][a-z0-9]*)(-[a-z0-9]+)*$",
			{
				"message": "(selector) => `Expected class selector \"${selector}\" to be kebab-case`"
			}
		],
		"selector-id-pattern": [
			"^([a-z][a-z0-9]*)(-[a-z0-9]+)*$",
			{
				"message": "(selector) => `Expected id selector \"${selector}\" to be kebab-case`"
			}
		],
		"selector-no-vendor-prefix": true,
		"selector-pseudo-class-no-unknown": true,
		"selector-pseudo-element-colon-notation": "double",
		"selector-pseudo-element-no-unknown": true,
		"selector-type-case": "lower",
		"selector-type-no-unknown": [
			true,
			{
				"ignore": [
					"custom-elements"
				]
			}
		],
		"shorthand-property-no-redundant-values": true,
		"string-no-newline": true,
		"unit-no-unknown": true,
		"value-keyword-case": "lower",
		"value-no-vendor-prefix": [
			true,
			{
				"ignoreValues": [
					"box",
					"inline-box"
				]
			}
		]
	}
}