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 / compositing / parsing
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 | 100.00% | (10/10) | 100.00% | (86/86) | 100.00% |
| Test | Subtests | Subtest % | Status |
|---|---|---|---|
| background-blend-mode-computed-multiple.html | (7/7) | 100.00% | PASS |
| background-blend-mode-computed.html | (19/19) | 100.00% | PASS |
| background-blend-mode-invalid.html | (2/2) | 100.00% | PASS |
| background-blend-mode-valid.html | (17/17) | 100.00% | PASS |
| isolation-computed.html | (2/2) | 100.00% | PASS |
| isolation-invalid.html | (2/2) | 100.00% | PASS |
| isolation-valid.html | (2/2) | 100.00% | PASS |
| mix-blend-mode-computed.html | (16/16) | 100.00% | PASS |
| mix-blend-mode-invalid.html | (3/3) | 100.00% | PASS |
| mix-blend-mode-valid.html | (16/16) | 100.00% | PASS |