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Dataset 20260827-2142-2f1b575 · measured 2026-08-27 21:42 UTC
-webkit-align-self
✓pixel-exactcompat
Our rendering of the example is identical to Chrome's, pixel for pixel — no further apart than the example's own noise floor.
What the specification says
- Syntax
- auto | <overflow-position>? [ normal | <self-position> ]| stretch | <baseline-position>
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.
-webkit-align-self:end✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:self-end✓pixel-exactOur renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:flex-end✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:last baseline✓pixel-exactOur renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:center✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:unsafe center✓pixel-exactOur renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:safe center✓pixel-exactOur renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:start✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:self-start✓pixel-exact
Our renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:flex-start✓pixel-exactOur renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:baseline✓pixel-exactOur renderChromeIdentical to Chrome: nothing differs, so there is no difference map to show.
- Differing pixels
- 0
- Max channel delta
- 0
-webkit-align-self:first baseline✓pixel-exactOur 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 15 branches; 12 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 |
|---|---|
| center | ✓pixel-exact |
| unsafe center | ✓pixel-exact |
| safe center | ✓pixel-exact |
| start | ✓pixel-exact |
| end | ✓pixel-exact |
| self-start | ✓pixel-exact |
| self-end | ✓pixel-exact |
| flex-start | ✓pixel-exact |
| flex-end | ✓pixel-exact |
| stretch | not measured |
| baseline | ✓pixel-exact |
| first baseline | ✓pixel-exact |
| last baseline | ✓pixel-exact |
| auto | not measured |
| normal | not measured |
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