[Webkit-unassigned] [Bug 252999] New: Unexpected result as paragraph z-index changes depending on CSS scale

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=252999

            Bug ID: 252999
           Summary: Unexpected result as paragraph z-index changes
                    depending on CSS scale
           Product: WebKit
           Version: Safari 16
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: adam.gamble at hey.com

Example case: https://jsfiddle.net/mdfs3tb0/

An outer div scales a fixed-size inner div (a 'canvas') which contains some elements positioned with translate().

Scaling past the bounds of the inner div will cause the z-index of the stacking order of the paragraph element to change.

This doesn't seem to happen in other browsers and seems unexpected.

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