Contact emailsdba...@chromium.org

ExplainerNone

Specificationhttps://drafts.csswg.org/css-transforms-2/#funcdef-perspective

Summary

Implement support for a 'none' argument to the perspective() function
within the syntax of the CSS transform property. This provides the
perspective() function with a value that gives the identity matrix. Its
effect is as though the perspective() function was given an argument that
is infinite. This makes it easier (or, in some cases, possible) to do
animations involving the perspective() function where one of the endpoints
of the animation is the identity matrix.


Blink componentBlink>CSS
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS>

Search tagscss <https://chromestatus.com/features#tags:css>, transform
<https://chromestatus.com/features#tags:transform>, perspective
<https://chromestatus.com/features#tags:perspective>

TAG reviewNot needed for a single value addition to a single function
within a CSS property.

TAG review statusNot applicable

Risks


Interoperability and Compatibility



Gecko: Shipped/Shipping (
https://bugzilla.mozilla.org/show_bug.cgi?id=1725207) Will ship very soon
in Firefox 93.

WebKit: No signal (
https://github.com/w3c/csswg-drafts/issues/6488#issuecomment-896962025)
Safari developers participated in the CSS Working Group discussion about
adding it and were ok with the addition. I recognize this isn't an official
signal, but this seems perhaps too small a feature to ask for an explicit
one.

Web developers: Positive (
https://bugzilla.mozilla.org/show_bug.cgi?id=1723266#c2) this is the one
explicit signal from a developer that I could find


Debuggability

Should be equally debuggable as existing values of the perspective()
function.


Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
?Yes

Flag name

Requires code in //chrome?False

Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1253596

Estimated milestones

No milestones specified


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5687325523705856

This intent message was generated by Chrome Platform Status
<https://www.chromestatus.com/>.

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