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Dataset 20260827-2142-2f1b575 · measured 2026-08-27 21:42 UTC
outline-style
✕parsed, no effectcss-ui-4
The parser accepts the name, yet our rendering is byte-identical with and without the declaration while Chrome's is not. The declaration is being swallowed.
What the specification says
- Initial value
- none
- Applies to
- all elements
- Inherited
- no
- Percentages
- N/A
- Computed value
- specified keyword
- Syntax
- auto | <outline-line-style>
The measurements
Each example is one declaration on a small page, drawn by Chrome and by our engine. Drag the handle to wipe between them.
outline-style:auto✕parsed, no effect
Our renderChrome10,144 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 10,144
- Max channel delta
- 204
outline-style:none✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
outline-style:dotted≈below the visible threshold
Our renderChrome52 pixels differ from Chrome, the largest by 3 of 255 on one channel.
- Differing pixels
- 52
- Max channel delta
- 3
outline-style:groove✕renders differently
Our renderChrome31 pixels differ from Chrome, the largest by 84 of 255 on one channel.
- Differing pixels
- 31
- Max channel delta
- 84
outline-style:ridge✕renders differently
Our renderChrome31 pixels differ from Chrome, the largest by 84 of 255 on one channel.
- Differing pixels
- 31
- Max channel delta
- 84
outline-style:inset✕renders differently
Our renderChrome67 pixels differ from Chrome, the largest by 84 of 255 on one channel.
- Differing pixels
- 67
- Max channel delta
- 84
outline-style:outset✕renders differently
Our renderChrome67 pixels differ from Chrome, the largest by 84 of 255 on one channel.
- Differing pixels
- 67
- Max channel delta
- 84
outline-style:dashed✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
outline-style:double✕renders differently
Our renderChrome446 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 446
- Max channel delta
- 204
Which values were measured
“Supported” on one example means “supported at the value we tried”. The property’s declared grammar has 10 branches; 9 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 |
|---|---|
| dotted | ≈below the visible threshold |
| dashed | ✓pixel-exact |
| solid | not measured |
| double | ✕renders differently |
| groove | ✕renders differently |
| ridge | ✕renders differently |
| inset | ✕renders differently |
| outset | ✕renders differently |
| auto | ✕parsed, no effect |
| none | ✓pixel-exact |
Measured against Chrome 148.0.7778.96 on 2026-08-27, with up to 40 candidate values tried per property. All properties · How the measurement works