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Re: [CSS21] percentage values of 'top'

From: David Hyatt <hyatt@apple.com>
Date: Fri, 05 Jun 2009 13:48:45 -0500
Cc: www-style@w3.org
Message-id: <B4555542-7BB8-49EB-9CA7-9A9CCD9C89E3@apple.com>
To: Anton Prowse <prowse@moonhenge.net>
This issue has already been fixed in WebKit.

dave
(hyatt@apple.com)

On Jun 5, 2009, at 1:36 PM, Anton Prowse wrote:

> Jorrit Vermeiren wrote:
>> It looks like this behaviour is "just" a vestige of CSS2. That says
>> the following about percentage values: "For 'top' and 'bottom', if  
>> the
>> height of the containing block is not specified explicitly (i.e., it
>> depends on content height), the percentage value is interpreted like
>> 'auto'." [1]
>
> Indeed.
>
> My apologies to the list for not doing my research before posting;  
> this issue has already been raised before[1], and fantasai responded  
> saying,[2]
>
> > The spec was actually changed so that percentages for top/bottom  
> *do*
> > work. Behavior in this case was previously explicitly undefined:
> >    http://www.w3.org/TR/CSS21/changes.html#q53
> > So that means at some point the browser implementors discussed it  
> and
> > decided it should be possible. I guess it just hasn't been done  
> yet :)
>
> The corresponding bug in Gecko is [3], in which Boris Zbarsky does  
> indeed state[4] that the behaviour currently implemented in Gecko is  
> that specified in CSS2.
>
> [1] http://lists.w3.org/Archives/Public/www-style/2007Aug/0139.html
> [2] http://lists.w3.org/Archives/Public/www-style/2007Aug/0152.html
> [3] https://bugzilla.mozilla.org/show_bug.cgi?id=260348
> [4] https://bugzilla.mozilla.org/show_bug.cgi?id=260348#c14
>
>
> Thanks,
> Anton Prowse
> http://dev.moonhenge.net
>
Received on Friday, 5 June 2009 18:49:24 GMT

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