Unexpected tokenUnexpected Token
The CSS parser encountered an unexpected character or token.
aspect-ratio ignoredThe aspect-ratio property is not taking effect on the element.
The element has explicit width AND height set, which overrides the aspect-ratio. The aspect-ratio only works when at most one dimension is specified explicitly. Replaced elements (img, video) may also need special handling.
Remove one of the explicit dimensions (width or height) and let aspect-ratio calculate it. For images, use width: 100% with aspect-ratio. Use object-fit for replaced elements.
Unexpected tokenThe CSS parser encountered an unexpected character or token.
Invalid @keyframesThe @keyframes animation definition has a syntax error.
Invalid grid templateThe grid-template-columns or grid-template-rows value has invalid syntax.
CSS nesting unsupportedThe browser does not support native CSS nesting syntax.
gap not working in flexboxThe gap property does not create spacing in a flex container.
z-index stacking contextElements are not layering as expected despite z-index values being set.