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Re: [CSS21] Clarification re Default Media Type

From: Al Gilman <Alfred.S.Gilman@IEEE.org>
Date: Sun, 6 Jan 2008 13:39:17 -0500
Message-Id: <p0611040ac3a6d07565b3@[192.168.1.102]>
To: fantasai <fantasai.lists@inkedblade.net>
Cc: www-style@w3.org, wa-liaison@w3.org

At 2:20 PM -0500 20 12 2007, fantasai wrote:

>I'm guessing that you want a clarification about "display: none" applying
>also to non-visual displays. I've recorded that as issue 22

Yes, thanks.  That is the specific problem we want fixed.

Al

>Al Gilman wrote:
>>
>>...
>>This undermines the argument that the @media all rule applies when no
>>specific media type is specified; however, it has been made plain -- at
>>least in email form -- from the editors of the CSS 2.1 draft -- that the
>>@media all rule DOES apply when no specific media type is specified;
>>consult:
>>
>><http://lists.w3.org/Archives/Member/wai-liaison/2007May/0023.html>
>>...
>>as Al Gilman, WAI PF's chair, pointed out during this exchange, in the
>>Visual Formatting Model section, the display property is explicitly
>>defined as pertaining to all media types, and yet, in the definition of
>>the none value for the display property is found the following:
>>...> This could be misread to imply: "when the display property's value is
>>none, it is not included in the graphical formatting structure (that
>>is, layout), but should still be available as a kind of generated
>>content, which occupies no part of the visual canvas, but which is
>>rendered in the aural canvas."
>>
>>Other than in the definition of the display property, our reviewer
>>couldn't find another instance in the draft that indicates that it
>>applies to all media types.
>>
>>Assuming that you *do* mean display='none' to apply to all media, the
>>Protocols & Formats working group requests that clarifying wording be
>>added to the CSS2.1 Technical Recommendation where appropriate, so as
>>to faithfully implement the consequences of the default media type
>>being 'all' when no media type is defined. It needs to be clear
>>whether display=none means nothing is presented to the user, in any
>>medium, not only a graphical medium involving layout boxes.
>
>I'm having a very hard time understanding what problem you want fixed.
>I'm guessing that you want a clarification about "display: none" applying
>also to non-visual displays. I've recorded that as issue 22
>   http://csswg.inkedblade.net/spec/css2.1#issue-22
>But there's a lot of other text in your post here, and I can't tell if
>it's trying to request some other change as well or what.
>
>~fantasai
Received on Sunday, 6 January 2008 18:39:31 GMT

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