css
CSS variable fallback not working
(variable|custom property).*fallback.*not working|var\(.*fallback
Fixes
- 1.Fallback only applies if variable is not defined (not invalid)
- 2.Use: var(--color, red) for undefined fallback
- 3.For invalid values, use @property with initial-value
custom-propertiesfallbackvar
Related Errors
css3 fixes
Container queries not supported
@container.*not.*supported|container-type.*unknown
- •Add container-type: inline-size to parent
- •Check browser version supports container queries
css3 fixes
Container query: Invalid container name
container-name.*must be.*ident
- •Use valid CSS identifier for container-name
- •Don't use CSS keywords as container names
css3 fixes
Container query: No matching container ancestor
@container.*no.*ancestor.*container
- •Add container-type to an ancestor element
- •Check container-name matches query