W3C home > Mailing lists > Public > www-style@w3.org > April 2005

Re: Stand-in color before images load

From: fantasai <fantasai.lists@inkedblade.net>
Date: Mon, 04 Apr 2005 13:18:46 -0400
Message-ID: <425176F6.5090107@inkedblade.net>
To: www-style@w3.org

David Woolley wrote:
>>However, as much as some will hate me for this, I'd really like to have a
>>null pseudo-class that targets css3 capable agents only, e.g. p:css3 {} ,
> Variations on this come up frequently.  The problems are:
> - user agents are not pure CSS 2 or CSS 3 agents (this may have changed, but
>   I think there are no CSS 2 agents, only ones with CSS 1 (possibly
>   partial) and parts of CSS2);
> - marketing departments interpret compliance optimistically;
> - errors in conformance claims in the implementation are likely to
>   have a low priority for fixing.

I think Ben Ward's !required proposal addresses these problems quite well.
It hooks into the conformance claims that user agents *already* make by parsing
and retaining the values they support.

Received on Monday, 4 April 2005 17:18:51 UTC

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