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)
wpt / css / css-images
| Area | Interop Score | Tests | Test % | Subtests | Subtest % |
|---|---|---|---|---|---|
| Total | 26.90% | (126/468) | 26.92% | (126/468) | 26.92% |
| gradient | 52.60% | (40/76) | 52.63% | (40/76) | 52.63% |
| image-orientation | 37.50% | (12/32) | 37.50% | (12/32) | 37.50% |
| image-set | 29.70% | (11/37) | 29.73% | (11/37) | 29.73% |
| tools | 0.00% | (0/7) | 0.00% | (0/7) | 0.00% |