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 | 21.10% | (49/232) | 21.12% | (49/232) | 21.12% |
| crashtests | 100.00% | (1/1) | 100.00% | (1/1) | 100.00% |
| i18n | 0.00% | (0/1) | 0.00% | (0/1) | 0.00% |
| invalidation | 9.50% | (6/63) | 9.52% | (6/63) | 9.52% |
| selectors-4 | 17.20% | (5/29) | 17.24% | (5/29) | 17.24% |