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-syntax
Spec: CSS Syntax ↗
Runs: Chrome 155.0.8039.0 (wpt@6ec9fd59f, 2026-09-03) | Firefox 157.0a1 (wpt@6ec9fd59f, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 98.4%430/437 | 76.9%336/437 | 99.3%434/437 | 92.7%405/437 | 74.4%325/437 | 29.5%129/437 |
| charset | 95.0%19/20 | 100.0%20/20 | 100.0%20/20 | 95.0%19/20 | 50.0%10/20 | 5.0%1/20 |
| crashtests | 100.0%3/3 | 100.0%3/3 | 100.0%3/3 | 100.0%3/3 | 100.0%3/3 | 66.7%2/3 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| anb-parsing.html | 67/67 | 67/67 | 67/67 | 65/67 | 67/67 | 0/67 |
| anb-serialization.html | 20/20 | 20/20 | 20/20 | 20/20 | 20/20 | 0/20 |
| at-rule-in-declaration-list.html | 6/6 | 6/6 | 6/6 | 4/6 | 4/6 | 0/6 |
| cdc-vs-ident-tokens.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| charset-is-not-a-rule.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| custom-property-rule-ambiguity.html | 4/4 | 4/4 | 4/4 | 3/4 | 4/4 | 0/4 |
| decimal-points-in-numbers.html | 6/6 | 6/6 | 6/6 | 6/6 | 6/6 | 0/6 |
| declarations-trim-whitespace.html | 9/9 | 9/9 | 9/9 | 9/9 | 9/9 | 9/9 |
| escaped-eof.html | 5/5 | 2/5 | 5/5 | 1/5 | 2/5 | 1/5 |
| ident-three-code-points.html | 8/8 | 8/8 | 8/8 | 8/8 | 8/8 | 8/8 |
| inclusive-ranges.html | 38/38 | 38/38 | 38/38 | 38/38 | 38/38 | 0/38 |
| input-preprocessing.html | 10/10 | 10/10 | 10/10 | 10/10 | 10/10 | 0/10 |
| invalid-nested-rules.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| missing-semicolon.html | PASS | PASS | PASS | PASS | PASS | PASS |
| non-ascii-codepoints.html | 15/15 | 15/15 | 15/15 | 15/15 | 15/15 | 0/15 |
| serialize-consecutive-tokens.html | 72/72 | 69/72 | 69/72 | 61/72 | 69/72 | 69/72 |
| serialize-escape-identifiers.html | PASS | FAIL | PASS | FAIL | PASS | FAIL |
| trailing-braces.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| unclosed-constructs.html | 4/4 | 4/4 | 4/4 | 4/4 | 4/4 | 4/4 |
| unclosed-url-at-eof.html | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 |
| unicode-range-selector.html | PASS | PASS | PASS | PASS | PASS | PASS |
| urange-parsing.html | 89/95 | 1/95 | 95/95 | 89/95 | 1/95 | 0/95 |
| url-whitespace-consumption.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| var-with-blocks.html | 14/14 | 14/14 | 14/14 | 10/14 | 14/14 | 0/14 |
| whitespace.html | 31/31 | 31/31 | 31/31 | 31/31 | 31/31 | 31/31 |