[Webkit-unassigned] [Bug 121574] New: Positioned element not rendering outside positioned parent with 'overflow', 'z-index' and '-webkit-transition'

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=121574

           Summary: Positioned element not rendering outside positioned
                    parent with 'overflow', 'z-index' and
                    '-webkit-transition'
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: lachlan.hunt at lachy.id.au


When an element with 'fixed' positioning is within a container that with either 'fixed' or 'absolute' positioning and with 'overflow' anything but 'visible', the inner element is not rendered if it is positioned outside the boundaries of the container when a third positioned element is underneath either of them, and has a lower z-index than the container.

See test case.

http://lachy.id.au/dev/css/bugs/webkit/positioning-bug.html

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