Status
This page documents the implementation status of various HTML and CSS features in Blitz.
This page documents Blitz's scores on the "css" subsuite of the Web Platform Tests.
Note: As it does not have a JavaScript engine, Blitz can only run about 20% of the total subtests. In the numbers below, tests that Blitz can't run are ignored and percentages are relative to the number of tests run.
Data from commit:
1093b86 wpt: skip non-UTF-8 test files instead of crashing (#659) (2026-08-09)
| Area | Interop Score | Tests | Test % | Subtests | Subtest % |
|---|---|---|---|---|---|
| Total | 8.30% | (1/12) | 8.33% | (1/12) | 8.33% |
| Test | Subtests | Subtest % | Status |
|---|---|---|---|
| CSSStyleSheet-constructable-concat.html | (0/1) | 0.00% | FAIL |
| CSSStyleSheet-constructable-insertRule-base-uri.html | (0/1) | 0.00% | FAIL |
| HTMLLinkElement-disabled-alternate.html | (1/1) | 100.00% | PASS |
| adoptedstylesheets-adopt-link.tentative.html | (0/1) | 0.00% | FAIL |
| adoptedstylesheets-adopt-style-subresource.tentative.html | (0/1) | 0.00% | FAIL |
| adoptedstylesheets-adopt-style.tentative.html | (0/1) | 0.00% | FAIL |
| all-initial-csstext.html | (0/1) | 0.00% | FAIL |
| insertRule-from-script.html | (0/1) | 0.00% | FAIL |
| medialist-dynamic-001.html | (0/1) | 0.00% | FAIL |
| selectorText-modification-restyle-001.html | (0/1) | 0.00% | FAIL |
| style-attr-clone.html | (0/1) | 0.00% | FAIL |
| stylesheet-replacedata-dynamic.html | (0/1) | 0.00% | FAIL |