W3C home > Mailing lists > Public > www-style@w3.org > February 2009

Re: [css3-multicol] z-ordering of column-rules

From: fantasai <fantasai.lists@inkedblade.net>
Date: Mon, 23 Feb 2009 13:01:51 -0800
Message-ID: <49A30EBF.8000005@inkedblade.net>
To: robert@ocallahan.org
CC: Håkon Wium Lie <howcome@opera.com>, "www-style@w3.org" <www-style@w3.org>
Robert O'Callahan wrote:
> On Tue, Feb 24, 2009 at 7:29 AM, Håkon Wium Lie <howcome@opera.com 
> <mailto:howcome@opera.com>> wrote:
> 
>     Robert O'Callahan wrote:
> 
>      > See http://www.w3.org/TR/css3-multicol/#column4. The spec says
>     nothing about
>      > the z-order of column-rules relative to other rendered items. It
>     needs to,
>      > in terms of http://www.w3.org/TR/CSS21/zindex.html.
>      >
>      > For a columns element that is also a stacking context, Webkit
>     apparently
>      > paints them in step 4 or later, e.g. above negative-zindex
>     children of the
>      > columns element. My preference is for the rules to be painted as
>     part of the
>      > background of the columns element, just above the actual
>     background ---
>      > i.e., for a columns element that is also a stacking context, at
>     the end of
>      > step 2. This seems a bit more logical to me. Anyway, the spec needs
>      > clarification one way or another.
> 
>     Could you propose some text to this effect?
> 
> 
> Just add a sentence to section 5:
> "If a column rule is wider than its gap, the column rule will overlap 
> adjacent column boxes. **Column rules are painted above the multi-column 
> element's background and border (if any) and below any descendants of 
> the element.**"

I'd make that "immediately above".

Are there any cases where descendants of an element can be painted below
it? If so, we might want to remove "and below any descendants of the element".

~fantasai
Received on Monday, 23 February 2009 21:02:32 GMT

This archive was generated by hypermail 2.3.1 : Tuesday, 26 March 2013 17:20:16 GMT