css
Font loading causing FOIT/FOUT
font-display.*block.*FOIT|font.*flash
Fixes
- 1.Use font-display: swap for FOUT (preferred)
- 2.Preload critical fonts with <link rel=preload>
- 3.Use font-display: optional to avoid layout shift
font-displayperformanceloading
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