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 / filter-effects
| Area | Interop Score | Tests | Test % | Subtests | Subtest % |
|---|---|---|---|---|---|
| Total | 45.40% | (151/332) | 45.48% | (151/332) | 45.48% |
| crashtests | 100.00% | (3/3) | 100.00% | (3/3) | 100.00% |
| filter-function | 14.20% | (2/14) | 14.29% | (2/14) | 14.29% |