[Webkit-unassigned] [Bug 66341] New: Adding empty keyframes changes stacking context or position parenting

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=66341

           Summary: Adding empty keyframes changes stacking context or
                    position parenting
           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: dino at apple.com
                CC: simon.fraser at apple.com, cmarrin at apple.com


Created an attachment (id=104099)
 --> (https://bugs.webkit.org/attachment.cgi?id=104099&action=review)
Animation Without Empty Keyframes

See the attached test cases. The only difference is that one of them has a duplicated "empty" keyframe rule up to the 50% mark. Notice that the innermost div gets positioned relative to its grandparent when the padding keyframes are present.

Since all elements are absolutely positioned, I think the transform: none shouldn't be causing this.

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