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.
wpt / css / compositing
Data from commit:
ff623a8 Fix the position of collapsed table borders (#1005) (2026-10-01)
| Area | Interop Score | Tests | Test % | Subtests | Subtest % |
|---|---|---|---|---|---|
| Total | 35.60% | (28/81) | 34.57% | (160/233) | 68.67% |
| parsing | 100.00% | (10/10) | 100.00% | (86/86) | 100.00% |
| mix-blend-mode | 14.58% | (7/48) | 14.58% | (23/64) | 35.94% |
| isolation | 91.65% | (1/2) | 50.00% | (36/43) | 83.72% |
| background-blending | 66.67% | (2/3) | 66.67% | (2/3) | 66.67% |
| svg | 50.00% | (1/2) | 50.00% | (1/2) | 50.00% |
| Test | Subtests | Subtest % | Status |
|---|---|---|---|
| canvas-composite-modes.html | (0/15) | 0.00% | FAIL |
| inheritance.html | (6/6) | 100.00% | PASS |
| opacity-and-transform-animation-crash.html | (1/1) | 100.00% | PASS |
| root-element-background-contain-hidden-crash.html | (1/1) | 100.00% | PASS |
| root-element-background-image-opaque-crash.html | (1/1) | 100.00% | PASS |
| root-element-background-image-transparency-001.html | (0/1) | 0.00% | FAIL |
| root-element-background-image-transparency-002.html | (0/1) | 0.00% | FAIL |
| root-element-background-image-transparency-003.html | (0/1) | 0.00% | FAIL |
| root-element-background-image-transparency-004.html | (0/1) | 0.00% | FAIL |
| root-element-background-margin-opacity.html | (1/1) | 100.00% | PASS |
| root-element-background-transparency.html | (0/1) | 0.00% | FAIL |
| root-element-blend-mode.html | (0/1) | 0.00% | FAIL |
| root-element-filter-background-clip-text-crash.html | (1/1) | 100.00% | PASS |
| root-element-filter.html | (0/1) | 0.00% | FAIL |
| root-element-opacity-change.html | (1/1) | 100.00% | PASS |
| root-element-opacity.html | (0/1) | 0.00% | FAIL |