WPT
wpt / css / css-cascade / import-conditions.html
Spec: CSS Cascading ↗
Runs: Chrome 155.0.8042.0 (wpt@0a3996025, 2026-09-04) | Firefox 157.0a1 (wpt@972e0e100, 2026-09-04) | Safari 251 preview (wpt@972e0e100, 2026-09-04) | Ladybird 1.0-3fd2d (wpt@c29bd2aee, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 29/29 | 29/29 | 28/29 | 29/29 | 23/29 | 0/29 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| supports(display:block) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports((display:flex)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports((display:block) and (display:flex)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports((display:block) and (foo:bar)) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports((display:block) or (display:flex)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports((display:block) or (foo:bar)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(not (display: flex)) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(display: block !important) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(foo:bar) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(supports(display:block)) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(()) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports() is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(display:block) (width >= 0px) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| (width >= 0px) supports(foo:bar) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| (width >= 0px) supports(display:block) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(selector(a)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(selector(p a)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(selector(p > a)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(selector(p + a)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(font-tech(color-COLRv1)) is a valid import condition | PASS | PASS | FAIL | PASS | FAIL | — |
| supports(font-tech(invalid)) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(font-format(opentype)) is a valid import condition | PASS | PASS | PASS | PASS | FAIL | — |
| supports(font-format(woff)) is a valid import condition | PASS | PASS | PASS | PASS | FAIL | — |
| supports(font-format(invalid)) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| supports(at-rule(@import)) is a valid import condition | PASS | PASS | PASS | PASS | FAIL | — |
| supports(at-rule(@media) or at-rule(@doesnotexist)) is a valid import condition | PASS | PASS | PASS | PASS | FAIL | — |
| supports(at-rule(@doesnotexist)) is not a valid import condition | PASS | PASS | PASS | PASS | PASS | — |
| layer(A.B) supports(font-format(opentype)) is a valid import condition | PASS | PASS | PASS | PASS | FAIL | — |
| layer supports(selector(a)) is a valid import condition | PASS | PASS | PASS | PASS | PASS | — |