Invalid property valueInvalid Property Value
The value assigned to a CSS property is not valid for that property.
@font-face format errorThe @font-face declaration has an invalid format or missing properties.
The font-family or src property is missing or malformed. The format hint may be incorrect, the URL path may be wrong, or the font file format is not supported by the browser.
Ensure font-family and src are both declared. Use correct format hints: format('woff2'), format('woff'). Verify the font file URL is correct and accessible. Include multiple format fallbacks.
Invalid property valueThe value assigned to a CSS property is not valid for that property.
Transition on displayA CSS transition is not working because the display property cannot be transitioned.
!important overuseExcessive use of !important makes styles difficult to override and maintain.
Invalid grid templateThe grid-template-columns or grid-template-rows value has invalid syntax.
:has() unsupportedThe browser does not support the :has() pseudo-class.
Missing closing braceA CSS rule block is missing its closing brace.