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.
wpt / css / filter-effects / animation
Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)
| Area | Interop Score | Tests | Test % | Subtests | Subtest % |
|---|---|---|---|---|---|
| Total | 55.90% | (0/12) | 0.00% | (1148/2076) | 55.30% |
| Test | Subtests | Subtest % | Status |
|---|---|---|---|
| backdrop-filter-composition-001.html | (28/364) | 7.69% | FAIL |
| backdrop-filter-interpolation-001.html | (174/274) | 63.50% | FAIL |
| backdrop-filter-interpolation-002.html | (65/82) | 79.27% | FAIL |
| backdrop-filter-interpolation-003.html | (120/202) | 59.41% | FAIL |
| backdrop-filter-interpolation-004.html | (150/200) | 75.00% | FAIL |
| color-interpolation-filters-no-interpolation.html | (0/42) | 0.00% | FAIL |
| filter-composition-001.html | (9/30) | 30.00% | FAIL |
| filter-interpolation-001.html | (108/144) | 75.00% | FAIL |
| filter-interpolation-002.html | (125/162) | 77.16% | FAIL |
| filter-interpolation-003.html | (165/304) | 54.28% | FAIL |
| filter-interpolation-004.html | (150/200) | 75.00% | FAIL |
| filter-interpolation-sign-function.html | (54/72) | 75.00% | FAIL |