[Webkit-unassigned] [Bug 168725] New: position: sticky shouldn't create a stacking context

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Feb 22 07:51:56 PST 2017


            Bug ID: 168725
           Summary: position: sticky shouldn't create a stacking context
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: flackr at chromium.org
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

As far as I can tell from reading https://drafts.csswg.org/css2/visuren.html#z-index only position fixed implicitly creates a stacking context.

Loading http://output.jsbin.com/yucorey shows an example page which demonstrates that currently sticky is creating a stacking context (i.e. the z-index 2 descendant is stacked below the z-index 1 sibling.

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