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Re: 'border-spacing', 'caption-side', 'border-collapse' inheritance

From: Bert Bos <bert@w3.org>
Date: Mon, 17 Dec 2007 20:16:02 +0100
Cc: "www-style@w3.org" <www-style@w3.org>
To: Undisclosed.Recipients: ;
Message-Id: <200712172016.02902.bert@w3.org>

On Monday 17 December 2007 19:36, Alex Mogilevsky wrote:
> (actually, there appears to be some support for inheritance. Let me
> come up with a test file to be more specific)
>
> From: www-style-request@w3.org [mailto:www-style-request@w3.org] On
> Behalf Of Alex Mogilevsky Sent: Monday, December 17, 2007 10:30 AM
> To: www-style@w3.org
> Subject: 'border-spacing', 'caption-side', 'border-collapse'
> inheritance
>
> CSS 2.1 says 'border-spacing', 'caption-side', 'border-collapse'
> inherit [1]. No current implementation that we've checked do that
> though, nor does it seem to make sense. Should the property
> definition be changed to "inherited:no", or do we overlook some other
> text that prevents inheritance into nested tables?

Probably what makes the inheritance invisible is that the default style 
sheet for HTML contains

    table { border-spacing: 2px; }

And, although it is not in the (non-normative) appendix D of the CSS 2.1 
spec, some browsers' UA style sheets also have this rule:

    table { border-collapse: separate }

They would have been more useful as rules on html instead of table, but 
I guess they better match what browsers did before CSS.

>
> [1] http://www.w3.org/TR/CSS21/tables.html#borders



Bert
-- 
  Bert Bos                                ( W 3 C ) http://www.w3.org/
  http://www.w3.org/people/bos                               W3C/ERCIM
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  +33 (0)4 92 38 76 92            06902 Sophia Antipolis Cedex, France
Received on Monday, 17 December 2007 19:16:15 GMT

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