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Dataset 20261001-0535-e08c90a · measured 2026-10-01 05:35 UTC
position-try-fallbacks
–not implemented0 of 12 examples match Chromecss-anchor-position-1
The engine's CSS parser does not know this property name, so the declaration is dropped where it is read.
What the specification says
- Initial value
- none
- Applies to
- absolutely positioned boxes
- Inherited
- no
- Percentages
- n/a
- Computed value
- as specified
- Syntax
- none | [ [<dashed-ident> || <try-tactic>] | <position-area> ]#
The measurements
12 examples, 0 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.
position-try-fallbacks:flip-block–not implemented
Our renderChrome14,400 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 14,400
- Max channel delta
- 204
position-try-fallbacks:flip-y–not implementedOur renderChrome14,400 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 14,400
- Max channel delta
- 204
position-try-fallbacks:top–not implementedOur renderChrome14,400 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 14,400
- Max channel delta
- 204
position-try-fallbacks:y-start–not implementedOur renderChrome14,400 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 14,400
- Max channel delta
- 204
position-try-fallbacks:self-y-start–not implementedOur renderChrome14,400 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 14,400
- Max channel delta
- 204
position-try-fallbacks:block-start–not implementedOur renderChrome14,400 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 14,400
- Max channel delta
- 204
position-try-fallbacks:left–not implemented
Our renderChrome13,798 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 13,798
- Max channel delta
- 204
position-try-fallbacks:right–not implemented
Our renderChrome13,798 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 13,798
- Max channel delta
- 204
position-try-fallbacks:x-start–not implementedOur renderChrome13,798 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 13,798
- Max channel delta
- 204
position-try-fallbacks:x-end–not implemented
Our renderChrome13,798 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 13,798
- Max channel delta
- 204
position-try-fallbacks:self-x-start–not implementedOur renderChrome13,798 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 13,798
- Max channel delta
- 204
position-try-fallbacks:self-x-end–not implementedOur renderChrome13,798 pixels differ from Chrome, the largest by 204 of 255 on one channel.
- Differing pixels
- 13,798
- 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 57 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 |
|---|---|
| --flexpdf | not measured |
| flip-block | –not implemented |
| flip-inline | not measured |
| flip-start | not measured |
| flip-x | not measured |
| flip-y | –not implemented |
| left | –not implemented |
| center | not measured |
| right | –not implemented |
| span-left | not measured |
| span-right | not measured |
| x-start | –not implemented |
| x-end | –not implemented |
| span-x-start | not measured |
| span-x-end | not measured |
| self-x-start | –not implemented |
| self-x-end | –not implemented |
| span-self-x-start | not measured |
| span-self-x-end | not measured |
| span-all | not measured |
| top | –not implemented |
| bottom | not measured |
| span-top | not measured |
| span-bottom | not measured |
| y-start | –not implemented |
| y-end | not measured |
| span-y-start | not measured |
| span-y-end | not measured |
| self-y-start | –not implemented |
| self-y-end | not measured |
| span-self-y-start | not measured |
| span-self-y-end | not measured |
| block-start | –not implemented |
| block-end | not measured |
| span-block-start | not measured |
| span-block-end | not measured |
| inline-start | not measured |
| inline-end | not measured |
| span-inline-start | not measured |
| span-inline-end | not measured |
| self-block-start | not measured |
| self-block-end | not measured |
| span-self-block-start | not measured |
| span-self-block-end | not measured |
| self-inline-start | not measured |
| self-inline-end | not measured |
| span-self-inline-start | not measured |
| span-self-inline-end | not measured |
| start | not measured |
| end | not measured |
| span-start | not measured |
| span-end | not measured |
| self-start | not measured |
| self-end | not measured |
| span-self-start | not measured |
| span-self-end | 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