[Bug 17521] New: Revise of background-attachment: fixed and transforms?


           Summary: Revise of background-attachment: fixed and transforms?
           Product: CSS
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Transforms
        AssignedTo: smfr@me.com
        ReportedBy: smfr@me.com
         QAContact: public-css-bugzilla@w3.org
                CC: ayg@aryeh.name, cmarrin@apple.com, eoconnor@apple.com,
                    smfr@me.com, dino@apple.com, dschulze@adobe.com

The spec describes a behavior for background-attachment:fixed where the
transformed element behaves as if it were a "porthole" through which the fixed
background shows.

This is tricky, but implementable for 2D transforms, but very difficult for
implementors of 3D transforms.

We may wish to punt and just say that any background-attachment:fixed on an
element that is transformed, or has a transformed container, behaves like

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Received on Saturday, 16 June 2012 22:47:57 UTC