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 | 6.80% | (26/381) | 6.82% | (26/381) | 6.82% |
| agnostic | 100.00% | (5/5) | 100.00% | (5/5) | 100.00% |
| flex | 3.80% | (4/103) | 3.88% | (4/103) | 3.88% |
| grid | 8.80% | (16/181) | 8.84% | (16/181) | 8.84% |
| grid-lanes | 0.00% | (0/47) | 0.00% | (0/47) | 0.00% |
| multicol | 2.20% | (1/45) | 2.22% | (1/45) | 2.22% |