WPT
wpt / css / css-backgrounds / parsing / background-computed.html
Spec: CSS Backgrounds ↗
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 | 13/39 | 31/39 | 35/39 | 10/39 | 31/39 | 31/39 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Property background-attachment value 'local' | FAIL | PASS | PASS | FAIL | FAIL | FAIL |
| Property background-attachment value 'scroll, fixed' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-attachment value 'local, fixed, scroll' | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Property background-attachment value 'local, fixed, scroll, fixed' | FAIL | PASS | PASS | FAIL | FAIL | FAIL |
| Property background-clip value 'border-box' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-clip value 'content-box, border-box' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-clip value 'border-box, padding-box, content-box' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-clip value 'content-box, border-box, padding-box, content-box' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-clip value 'content-box, border-box, padding-box' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-clip value 'content-box, border-box, border-area' | PASS | FAIL | PASS | FAIL | FAIL | FAIL |
| Property background-clip value 'border-area text' | FAIL | FAIL | FAIL | FAIL | FAIL | FAIL |
| Property background-clip value 'border-area text, content-box' | FAIL | FAIL | FAIL | FAIL | FAIL | FAIL |
| Property background-color value 'rgb(255, 0, 0)' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-origin value 'border-box' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-origin value 'content-box, border-box' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-origin value 'border-box, padding-box, content-box' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-origin value 'content-box, border-box, padding-box, content-box' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position value '50% 6px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position value '12px 13px, 50% 6px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position value '12px 13px, 50% 6px, 30px -10px' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position value '12px 13px, 50% 6px, 30px -10px, -7px 8px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-x value '0.5em' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-x value '-20%, 10px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-x value 'center, left, right' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-x value 'calc(10px - 0.5em), -20%, right, 15%' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value '0.5em' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value '-20%, 10px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-position-y value 'center, top, bottom' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-position-y value 'calc(10px - 0.5em), -20%, bottom, 15%' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-repeat value 'round' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-repeat value 'repeat-x, repeat' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-repeat value 'repeat space, round no-repeat, repeat-x' | PASS | PASS | PASS | PASS | PASS | PASS |
| Property background-repeat value 'repeat-y, round no-repeat, repeat-x, repeat' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| Property background-size value 'contain' | FAIL | FAIL | PASS | FAIL | PASS | PASS |
| Property background-size value 'auto 1px, 2% 3%' | FAIL | FAIL | PASS | FAIL | PASS | PASS |
| Property background-size value 'auto 1px, 2% 3%, contain' | PASS | FAIL | PASS | PASS | PASS | PASS |
| Property background-size value 'auto 1px, 2% 3%, contain, 7px 8px' | FAIL | PASS | PASS | FAIL | PASS | PASS |
| background shorthand with 'border-area text' computes background-clip correctly | PASS | FAIL | FAIL | FAIL | FAIL | FAIL |
| background shorthand with 'text border-area' computes background-clip correctly | PASS | FAIL | FAIL | FAIL | FAIL | FAIL |