Durchstöbern Sie alle 40 CSS-Fehler-Fehlercodes mit Ursachen, Lösungen und Beispielen.
AkousaInvalid property valueThe value assigned to a CSS property is not valid for that property.
Unknown propertyThe CSS property name is not recognized by the browser.
Unexpected tokenThe CSS parser encountered an unexpected character or token.
Missing semicolonA semicolon is missing at the end of a CSS declaration.
Unrecognized at-ruleThe CSS parser does not recognize the @-rule.
Invalid selectorThe CSS selector syntax is not valid.
z-index stacking contextElements are not layering as expected despite z-index values being set.
Specificity conflictA CSS rule is not applied because a more specific selector overrides it.
Overflow hidden clippingContent is being clipped or hidden unexpectedly due to overflow settings.
Deprecated -webkit- prefixA -webkit- prefixed property is deprecated and should be replaced with the standard version.
Deprecated -moz- prefixA -moz- prefixed property is deprecated and should be replaced with the standard version.
Flex item overflowA flex item overflows its container because it cannot shrink enough.
Invalid grid templateThe grid-template-columns or grid-template-rows value has invalid syntax.
Invalid calc() expressionThe calc() function has a syntax error.
!important overuseExcessive use of !important makes styles difficult to override and maintain.
@font-face format errorThe @font-face declaration has an invalid format or missing properties.
Font loading failedA web font could not be loaded from the specified URL.
Invalid media queryThe media query syntax is not valid.
Invalid @keyframesThe @keyframes animation definition has a syntax error.
Undefined CSS variableA CSS custom property (variable) is referenced but not defined.
Circular CSS variableTwo or more CSS custom properties reference each other, creating a circular dependency.
Transition on displayA CSS transition is not working because the display property cannot be transitioned.
Invalid color functionA CSS color function (rgb, hsl, oklch, etc.) has invalid syntax.
Container query unsupportedThe browser does not support @container queries.
CSS nesting unsupportedThe browser does not support native CSS nesting syntax.
Missing closing braceA CSS rule block is missing its closing brace.
Duplicate selectorThe same selector appears multiple times in the stylesheet.
Shorthand property overrideA CSS shorthand property resets values previously set by longhand properties.
Margin collapseVertical margins between elements collapse into a single margin instead of adding together.
Invalid clamp() syntaxThe clamp() function has incorrect syntax or parameters.
aspect-ratio ignoredThe aspect-ratio property is not taking effect on the element.
@layer ordering issueCSS cascade layers are not applying styles in the expected order.
Subgrid unsupportedThe browser does not support the subgrid value for grid-template-columns or grid-template-rows.
CSS Paint API errorA CSS Paint Worklet failed to render or register.
Scroll snap not workingCSS scroll snapping is not behaving as expected.
:has() unsupportedThe browser does not support the :has() pseudo-class.
position: sticky not workingThe element with position: sticky does not stick as expected.
backdrop-filter not renderingThe backdrop-filter property has no visible effect on the element.
gap not working in flexboxThe gap property does not create spacing in a flex container.
text-overflow: ellipsis not workingThe text-overflow: ellipsis property does not show an ellipsis for overflowing text.