[Webkit-unassigned] [Bug 11688] New: Inline !important CSS behaves wrong, specifically: <hr> margins

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=11688

           Summary: Inline !important CSS behaves wrong, specifically: <hr>
                    margins
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: UNCONFIRMED
          Severity: Blocker
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: myrd at projectmagma.net


In all modern browsers, except Safari (tested with 10.4.8's shipping version,
and nightly WebKit r17840), the following will display some amount of margin
around a <hr> tag:

<hr style="margin:7 0 7 0 !important; margin:0">

This acts in two ways. For browsers that understand !important, it applies the
first margin, for everything else it applies the second styling. It appears
that Safari handles !important incorrectly when it is inline.

This produces the following results: Opera, Firefox, etc all render it with the
!important margin, meaning a top and bottom margin of 7px. WinIE renders it
with the other margin of 0px, but since its default hr comes with non-compliant
padding, it looks the same as Opera and Firefox.

Only in Safari, it behaves differently. That is, a 0px margin is applied, and
therefore there is no margin at all around the <hr> because Safari doesn't have
an extra implicit border on <hr> like WinIE.

This behaviour should be addressed to support inline !important, and therefore
behave like Firefox and Opera.


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