[Webkit-unassigned] [Bug 36772] New: CSS clip:auto; clips to box borders instead of removing clipping

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=36772

           Summary: CSS clip:auto; clips to box borders instead of
                    removing clipping
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://www.howtocreate.co.uk/working/clipauto.html
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bhuisman at greywyvern.com


Created an attachment (id=51952)
 --> (https://bugs.webkit.org/attachment.cgi?id=51952)
Test case showing hidden box-shadow and generated content when using clip:auto;

According to the CSS specifications, a clip value of "auto" should remove all
clipping from an absolutely positioned element. 
http://www.w3.org/TR/CSS21/visufx.html#clipping  "auto: The element does not
clip."

However, in WebKit browsers, a clip value of "auto" is treated the same as
clip:rect(auto, auto, auto, auto) resulting in clipping that clips to all four
edges of the box.  This has the effect of hiding box elements that extend
beyond the box border such as box-shadow and generated content.

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