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[css3-multicol] z-order of column-rule: below or above border?

From: Gérard Talbot <www-style@gtalbot.org>
Date: Wed, 14 Aug 2013 22:10:35 -0400
Message-ID: <c48958e852a8edb304f742cfe593d013.squirrel@ed-sh-cp3.entirelydigital.com>
To: "www-style mailing list" <www-style@w3.org>
Hello,

"
If a column rule is wider than its gap, the column rule will overlap
adjacent column boxes, and possibly extend outside the box of the multicol
element. Column rules are painted just above the background of the
multicol element.
"
http://www.w3.org/TR/css3-multicol/#column-gaps-and-rules

"
If a column rule is wider than its gap, the adjacent column boxes will
overlap the rule, and the rule may possibly extend outside the box of the
multicol element. Column rules are painted in the inline content layer,
but below all inline content inside the multicol element. Column rules are
only drawn between two columns that both have content.
"
http://dev.w3.org/csswg/css-multicol/#column-gaps-and-rules

If such multi-column element (having a column-rule wider than its gap) has
a border, then a) should the column-rule overlap its border (Firefox 23,
Opera 12.16, Chrome 28.0.1500.95 do that) or b) should it be just below
the border (IE10 does that) ?

eg.
http://www.gtalbot.org/BrowserBugsSection/CSS3Multi-Columns/Opera/multicol-rule-large-001-GT.xht

Both scenarios are possible interpretations of the current spec.

Gérard
-- 
CSS 2.1 Test suite RC6, March 23rd 2011
http://test.csswg.org/suites/css2.1/20110323/html4/toc.html

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Received on Thursday, 15 August 2013 02:11:04 UTC

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