[Webkit-unassigned] [Bug 124705] New: [CSS Regions] Floats do not respect the correct painting order when flowed in regions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=124705

           Summary: [CSS Regions] Floats do not respect the correct
                    painting order when flowed in regions
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mibalan at adobe.com
                CC: WebkitBugTracker at adobe.com
            Blocks: 57312


Created an attachment (id=217536)
 --> (https://bugs.webkit.org/attachment.cgi?id=217536&action=review)
Test-case

As per the CSS2.1 painting order, the floats are painted after normal flow contents, but before any positioned content in the same block formatting context as them (e.g. positioned elements paint on top of floats, too). However, when content with overlapping floats and positioned elements is flowed in regions, the floats get painted on top of the positioned elements.

In attached file, you should see a green square (relatively positioned div), but WebKit shows a red square (the float).

Possibly related to bug 124346.

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