WPT
wpt / css / css-backgrounds / animations / border-right-width-composition.html
Spec: CSS Backgrounds ↗
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-ca64c (wpt@b89af32bc, 2026-09-05) | 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 | 40/40 | 40/40 | 40/40 | 40/40 | 40/40 | 40/40 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (-0.3) should be [120px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (0) should be [150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (0.5) should be [200px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (1) should be [250px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (1.5) should be [300px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (-0.3) should be [120px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (0) should be [150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (0.5) should be [200px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (1) should be [250px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to add [200px] at (1.5) should be [300px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (-0.5) should be [114px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (0) should be [110px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (0.5) should be [106px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (1) should be [102px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (1.5) should be [98px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (-0.5) should be [114px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (0) should be [110px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (0.5) should be [106px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (1) should be [102px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [100px] from add [10px] to add [2px] at (1.5) should be [98px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (-0.3) should be [calc(130px + 4em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (0) should be [calc(100px + 10em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (0.5) should be [calc(50px + 20em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (1) should be [30em] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (1.5) should be [calc(-50px + 40em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (-0.3) should be [calc(130px + 4em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (0) should be [calc(100px + 10em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (0.5) should be [calc(50px + 20em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (1) should be [30em] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [10em] from add [100px] to add [20em] at (1.5) should be [calc(-50px + 40em)] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (-0.3) should be [135px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (0) should be [150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (0.5) should be [175px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (1) should be [200px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (1.5) should be [225px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (-0.3) should be [135px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (0) should be [150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (0.5) should be [175px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (1) should be [200px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-right-width> underlying [50px] from add [100px] to replace [200px] at (1.5) should be [225px] | PASS | PASS | PASS | PASS | PASS | PASS |