WPT
wpt / fullscreen / rendering / fullscreen-ua-stylesheet.html
Spec: Fullscreen API ↗
Runs: Chrome 155.0.8043.0 (wpt@b89af32bc, 2026-09-05) | Firefox 157.0a1 (wpt@b89af32bc, 2026-09-05) | Safari 251 preview (wpt@b89af32bc, 2026-09-05) | Ladybird 1.0-8b5a4 (wpt@b89af32bc, 2026-09-06) | Servo Servo 0.6 (wpt@b89af32bc, 2026-09-06) | 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 | 3/3 | 3/3 | 3/3 | 3/3 | 3/3 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| UA stylesheet: margin:0!important and box-sizing:border-box!important apply to fullscreen element | PASS | PASS | PASS | PASS | PASS | — |
| UA stylesheet: object-fit:contain applies to fullscreen element when author has no :fullscreen override | PASS | PASS | PASS | PASS | PASS | — |
| UA stylesheet: object-fit:contain is not !important - author can override | PASS | PASS | PASS | PASS | PASS | — |