[Webkit-unassigned] [Bug 241784] New: CSS Logical properties inline-size and block-size cannot be animated

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=241784

            Bug ID: 241784
           Summary: CSS Logical properties inline-size and block-size
                    cannot be animated
           Product: WebKit
           Version: Safari 15
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: felipe at fluente.me

Replacing CSS width with inline-size or height with block-size, transitions or animations stop working on Safari. They work as expected on Chrome. Here's an isolated example: https://codepen.io/FelipePS/pen/LYQoZQL

Expected behaviour: div should spring up and down or left and right when we set keyframes from and to block-size or inline-size.

Current behaviour: div remains static using inline-size and block-size fixed.

Current workarounds: using -webkit vendor prefix does not solve it. using standard height or width within keyframes or transition solves it.

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