WPT
wpt / css / css-backgrounds / parsing / background-position-y-computed.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-f437c (wpt@b89af32bc, 2026-09-06) | 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 | 10/19 | 16/19 | 17/19 | 10/19 | 16/19 | 16/19 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Property background-position-y value 'center' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'top' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'bottom' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'y-start' | FAIL | FAIL | FAIL | FAIL | FAIL | FAIL |
| Property background-position-y value 'y-end' | FAIL | FAIL | FAIL | FAIL | FAIL | FAIL |
| Property background-position-y value '-20%' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value '10px' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value '0.5em' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'calc(10px - 0.5em)' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'top -20%' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'bottom -10px' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value '-20%, 10px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value 'center, top, bottom' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value '0.5em, y-start, y-end' | FAIL | FAIL | PASS | FAIL | FAIL | FAIL |
| Property background-position-y value 'calc(10px - 0.5em), -20%, 10px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value 'calc(10px - 0.5em), top -20%, bottom 10px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value 'center' multiple base values | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value 'center, top' multiple base values | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'center, top, bottom' multiple base values | FAIL | PASS | PASS | FAIL | PASS | PASS |