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:
708eb61 WPT runner: support mismatch reftests and multiple rel=match links (#665) (2026-08-09)
wpt / css / css-text / text-fit
| Area | Interop Score | Tests | Test % | Subtests | Subtest % |
|---|---|---|---|---|---|
| Total | 17.30% | (4/23) | 17.39% | (4/23) | 17.39% |
| Test | Subtests | Subtest % | Status |
|---|---|---|---|
| background-image.html | (0/1) | 0.00% | FAIL |
| columns-consistent.html | (0/1) | 0.00% | FAIL |
| columns-crash.html | (1/1) | 100.00% | PASS |
| consistent-blank-line.html | (0/1) | 0.00% | FAIL |
| grow-consistent.html | (0/1) | 0.00% | FAIL |
| grow-dynamic.html | (1/1) | 100.00% | PASS |
| grow-per-line-all-line-height.html | (0/1) | 0.00% | FAIL |
| grow-per-line-all.html | (0/1) | 0.00% | FAIL |
| grow-per-line.html | (0/1) | 0.00% | FAIL |
| selection-highlight-painting.html | (0/1) | 0.00% | FAIL |
| shrink-consistent-crash.html | (1/1) | 100.00% | PASS |
| shrink-consistent.html | (0/1) | 0.00% | FAIL |
| shrink-dynamic.html | (1/1) | 100.00% | PASS |
| shrink-per-line-all.html | (0/1) | 0.00% | FAIL |
| spacing.html | (0/1) | 0.00% | FAIL |
| text-align.html | (0/1) | 0.00% | FAIL |
| text-box.html | (0/1) | 0.00% | FAIL |
| text-decoration-skip-ink.html | (0/1) | 0.00% | FAIL |
| text-decoration-thickness.html | (0/1) | 0.00% | FAIL |
| text-emphasis.html | (0/1) | 0.00% | FAIL |
| text-underline-offset.html | (0/1) | 0.00% | FAIL |
| vertical-align.html | (0/1) | 0.00% | FAIL |
| writing-mode.html | (0/1) | 0.00% | FAIL |