CSS Plugin

Rules for CSS (Cascading Style Sheets), a browser language for styling documents.
This plugin is provided in a standalone @flint.fyi/plugin-css npm package.

Note

Coming soon: details on this plugin’s presets.

Note

Coming soon: more expansive documentation on choosing and combining plugins & presets with Flint.

Rules

Implemented: 1 of 137 (0.7%)

Flint Rule	Preset
anbSelectorMatchability	logical
animationNameValidity	logical
annotationValidity	logical
atRuleDeprecations	logical
atRulePlacements	logical
atRuleValidity	logical
baselineFeatures	logical
calcOperatorValidity	logical
customMediaValidity	logical
customPropertyDuplicates	logical
customPropertyValidity	logical
customPropertyVarFunctionPresence	logical
declarationPositionValidity	logical
declarationPropertyDuplicates	logical
declarationPropertyValueKeywordDeprecations	logical
doubleSlashCommentValidity	logical
emptyBlocks	logical
emptyComments	logical
emptySources	logical
fontFamilyFallbacks	logical
fontFamilyNameDuplicates	logical
fontNameDuplicates	logical
functionValidity	logical
genericFontNames	logical
gridAreaValidity	logical
hexColorValidityReports hex colors with invalid values.	logical
importDuplicates	logical
importRuleDuplicates	logical
importRulePositions	logical
keyframeImportantDeclarations	logical
keyframeSelectorDuplicates	logical
linearGradientDirections	logical
linearGradientDirectionValidity	logical
mediaFeatureNameValidity	logical
mediaFeatureNameValueValidity	logical
mediaQueryValidity	logical
mediaTypeDeprecations	logical
namedGridAreaValidity	logical
nestingSelectorScopingRootPresence	logical
propertyDeprecations	logical
propertyDuplicates	logical
propertyValidity	logical
pseudoClassValidity	logical
pseudoElementValidity	logical
selectorDeprecations	logical
selectorDuplicates	logical
selectorMatchability	logical
selectorSpecificities	logical
selectorTypeValidity	logical
selectorValidity	logical
shorthandPropertyOverrides	logical
stringValidity	logical
syntaxStringValidity	logical
typeSelectorValidity	logical
unitValidity	logical
valueAtRules	logical
variableFunctionPresence	logical
whitespaceValidity	logical
atRuleVendorPrefixes	logical (strict)
baselineSupport	logical (strict)
cascadeLayers	logical (strict)
descendingSpecificity	logical (strict)
fontUnitRelativity	logical (strict)
importantDeclarations	logical (strict)
logicalProperties	logical (strict)
mediaFeatureNameVendorPrefixes	logical (strict)
propertyVendorPrefixes	logical (strict)
qualifyingTypeSelectors	logical (strict)
selectorVendorPrefixes	logical (strict)
urlSchemeRelativity	logical (strict)
valueVendorPrefixes	logical (strict)
alphaValueNotations	stylistic
blockContents	stylistic
colorAlphaRedundancy	stylistic
colorFunctionAliasNotations	stylistic
colorFunctionNotations	stylistic
displayNotations	stylistic
fontFamilyNameQuotes	stylistic
fontWeightNotations	stylistic
functionNameCasing	stylistic
hexColorAlphas	stylistic
hexColorStyles	stylistic
hueDegreeNotations	stylistic
importNotations	stylistic
keyframeSelectorNotations	stylistic
lightnessNotations	stylistic
longhandPropertyRedundancy	stylistic
mediaFeatureRangeNotations	stylistic
namedColors	stylistic
nestedStyleRuleRedundancy	stylistic
numberLeadingZeros	stylistic
numericTrailingZeros	stylistic
propertyCasing	stylistic
selectorAttributeQuotes	stylistic
selectorNestingRelativity	stylistic
selectorNotNotations	stylistic
selectorPseudoElementColonNotations	stylistic
selectorTypeCasing	stylistic
shorthandValueRedundancy	stylistic
urlQuotes	stylistic
valueKeywordCasing	stylistic
zeroLengthUnits	stylistic
hexColors	stylistic (strict)
importantStyles	stylistic (strict)
selectorClassCounts	stylistic (strict)
atRuleRequiredProperties	(none)
atRules	(none)
commentPatterns	(none)
commentWords	(none)
containerNamePatterns	(none)
customMediaPatterns	(none)
customPropertyPatterns	(none)
declarationPropertyUnits	(none)
declarationPropertyValues	(none)
functions	(none)
keyframesNamePatterns	(none)
layerNamePatterns	(none)
mediaFeatureNames	(none)
mediaFeatureNameValues	(none)
mediaFeatureUnits	(none)
nestingAtRuleRequirements	(none)
properties	(none)
propertyLayoutMappings	(none)
pseudoClasses	(none)
pseudoElements	(none)
ruleSelectorProperties	(none)
selectorAttributeNames	(none)
selectorAttributeOperators	(none)
selectorClassPatterns	(none)
selectorCombinators	(none)
selectorIdPatterns	(none)
selectorNestedPatterns	(none)
selectors	(none)
unitLayoutMappings	(none)
units	(none)
urlSchemes	(none)
valueKeywordLayoutMappings	(none)