WPT
This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.
wpt / css / css-backgrounds / background-size
Spec: CSS Backgrounds ↗
Runs: Chrome 155.0.8042.0 (wpt@a1ecd0c09, 2026-09-04) | Firefox 157.0a1 (wpt@a1ecd0c09, 2026-09-04) | Safari 251 preview (wpt@e7122b73f, 2026-09-04) | Ladybird 1.0-52f0f (wpt@0588f3896, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 96.8%210/217 | 97.2%211/217 | 87.1%189/217 | 90.3%196/217 | 46.5%101/217 | 96.8%210/217 |
| vector | 98.1%202/206 | 98.1%202/206 | 88.3%182/206 | 90.8%187/206 | 44.7%92/206 | 99.5%205/206 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| background-size-contain-svg-view.html | PASS | PASS | PASS | PASS | FAIL | FAIL |
| background-size-contain.xht | FAIL | PASS | PASS | FAIL | PASS | FAIL |
| background-size-cover-contain-001.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| background-size-cover-contain-002.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| background-size-cover-svg-view.html | PASS | PASS | FAIL | FAIL | FAIL | FAIL |
| background-size-cover-svg.html | PASS | PASS | PASS | PASS | PASS | PASS |
| background-size-cover.xht | FAIL | PASS | PASS | PASS | PASS | FAIL |
| background-size-near-zero-color.html | PASS | PASS | PASS | PASS | PASS | PASS |
| background-size-near-zero-gradient.html | PASS | FAIL | FAIL | PASS | PASS | FAIL |
| background-size-near-zero-png.html | PASS | PASS | FAIL | PASS | PASS | PASS |
| background-size-near-zero-svg.html | FAIL | FAIL | FAIL | PASS | PASS | FAIL |