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Dataset 20261001-0535-e08c90a · measured 2026-10-01 05:35 UTC
-webkit-mask
≈below the visible threshold2 of 2 examples match Chromecompat
Differs from Chrome only inside the measured anti-aliasing band (maximum channel distance 3 of 255). Curves, rotation and gradients land here.
The measurements
2 examples, 2 of them matching Chrome. Each is one declaration on a small page, drawn by Chrome and by our engine. Drag the handle to wipe between them.
-webkit-mask:url(data:image/gif✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-mask:linear-gradient(90deg,#000 0 60%,transparent)≈below the visible threshold
Our renderChrome22,251 pixels differ from Chrome, the largest by 3 of 255 on one channel.
- Differing pixels
- 22,251
- Max channel delta
- 3
Which values were measured
“Supported” on one example means “supported at the value we tried”. The property’s declared grammar has 85 branches; 0 of them carry a measurement. The publishing ceiling is 12 examples per property — a branch past it is left out by our choice, not by accident.
| Value | Measured |
|---|---|
| linear-gradient(90deg,#f00,#00f) | not measured |
| url(data:image/gif;base64,R0lGODlhAQABAIAAAP8AAAAAACwAAAAAAQABAAACAkQBADs=) | not measured |
| left | not measured |
| center | not measured |
| right | not measured |
| top | not measured |
| bottom | not measured |
| x-start | not measured |
| x-end | not measured |
| y-start | not measured |
| y-end | not measured |
| block-start | not measured |
| block-end | not measured |
| inline-start | not measured |
| inline-end | not measured |
| 20px | not measured |
| 50% | not measured |
| left top | not measured |
| center top | not measured |
| right top | not measured |
| x-start top | not measured |
| x-end top | not measured |
| left center | not measured |
| left bottom | not measured |
| left y-start | not measured |
| left y-end | not measured |
| 20px top | not measured |
| 50% top | not measured |
| left 20px | not measured |
| left 50% | not measured |
| block-start inline-start | not measured |
| center inline-start | not measured |
| block-end inline-start | not measured |
| block-start center | not measured |
| block-start inline-end | not measured |
| start start | not measured |
| center center | not measured |
| end end | not measured |
| left 20px top 20px | not measured |
| right 20px top 20px | not measured |
| x-start 20px top 20px | not measured |
| x-end 20px top 20px | not measured |
| left 50% top 20px | not measured |
| left 20px bottom 20px | not measured |
| left 20px y-start 20px | not measured |
| left 20px y-end 20px | not measured |
| left 20px top 50% | not measured |
| block-start 20px inline-start 20px | not measured |
| block-end 20px inline-start 20px | not measured |
| block-start 50% inline-start 20px | not measured |
| block-start 20px inline-end 20px | not measured |
| block-start 20px inline-start 50% | not measured |
| start 20px start 20px | not measured |
| end 20px end 20px | not measured |
| start 50% start 50% | not measured |
| left / 20px | not measured |
| left / 50% | not measured |
| left / auto | not measured |
| left / cover | not measured |
| left / contain | not measured |
| repeat-x | not measured |
| repeat-y | not measured |
| repeat-block | not measured |
| repeat-inline | not measured |
| repeat | not measured |
| space | not measured |
| round | not measured |
| no-repeat | not measured |
| content-box | not measured |
| padding-box | not measured |
| border-box | not measured |
| margin-box | not measured |
| half-border-box | not measured |
| fill-box | not measured |
| stroke-box | not measured |
| view-box | not measured |
| no-clip | not measured |
| add | not measured |
| subtract | not measured |
| intersect | not measured |
| exclude | not measured |
| alpha | not measured |
| luminance | not measured |
| match-source | not measured |
| none | not measured |
Measured against Chrome 148.0.7778.96 on 2026-10-01, with up to 40 candidate values tried per property. All properties · How the measurement works