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Re: [CSS21] Comments on the 2003-09-15 CSS 2.1 Draft

From: David Woolley <david@djwhome.demon.co.uk>
Date: Mon, 20 Oct 2003 07:20:29 +0100 (BST)
Message-Id: <200310200620.h9K6KTl00612@djwhome.demon.co.uk>
To: www-style@w3.org

> I suggest calling "absolute" units "physical" instead, because people 
> tend to consider pixels absolute in the context of computer graphics.

Note that the Web Content Accessibility Guidelines refer to absolute
units (specifically: to avoid them) and in that context pixels are regarded
as absolute.  Also, when one leaves online displays, pixels are treated
as absolute units (historically equal to points, but maybe these days
more like 72/96th of a point).

> and when they are not. For interoperability and performance, it is 
> recommended that Web browsers not process the external DTD subset."

That will break the rendering of the vast majority of current web pages,
including some commercially important features, like copyright symbols,
because it will deny the use the full range of symbolic entities.  As
I've said before the vast majority of tools that call themselves 
web browsers have built in knowledge of HTML DTDs and some even
have make an attempt to obey them properly.  Pure XML browsers are
a techie's tool.

Your wording seems to be permitting the processing of internal susbsets;
I thought that non-validating parsers were not required to handle
any of the DTD at all.
Received on Monday, 20 October 2003 02:42:01 GMT

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