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Dataset 20261011-0550-f160c57 · measured 2026-10-11 05:50 UTC
box-shadow
◐matches Chrome on some values2 of 3 examples match Chromecss-borders-4
Some of the examples match Chrome and some do not. The count beside the verdict says how many — 11 of 12 — and the values that differ are listed on the property page. It is neither a pass nor a failure, and filing it under either would be a lie in one direction.
Here: 2 of 3 examples match Chrome. The one that does not: box-shadow:10px 10px 12px #e07a1f — shown first below, each with its difference map.
What the specification says
- Initial value
- none
- Applies to
- all elements
- Inherited
- no
- Percentages
- N/A
- Computed value
- see individual properties
- Syntax
- <spread-shadow>#
The measurements
3 examples, 2 of them matching Chrome, the rest first. Each is one declaration on a small page, drawn by Chrome and by our engine. Drag the handle to wipe between them.
box-shadow:10px 10px 12px #e07a1f✕renders differently
Our renderChrome17,191 pixels differ from Chrome, the largest by 25 of 255 on one channel.
- Differing pixels
- 17,191
- Max channel delta
- 25
box-shadow:14px 14px 0 8px #e07a1f✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
box-shadow:14px 14px 0 #e07a1f✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
Which values were measured
“Supported” on one example means “supported at the value we tried”. The property’s declared grammar has 3 branches; 3 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 |
|---|---|
| 14px 14px 0 #e07a1f | ✓pixel-exact |
| 10px 10px 12px #e07a1f | ✕renders differently |
| 14px 14px 0 8px #e07a1f | ✓pixel-exact |
Tests in the suite that name this property
Secondary evidence: 1 Web Platform Test carry a spec anchor pointing at this property. Only 1,254 tests in the whole corpus carry such an anchor, so an empty list here means nothing at all.
Measured against Chrome 148.0.7778.96 on 2026-10-11, with up to 40 candidate values tried per property. All properties · How the measurement works