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Re: another try at a proposal for scaling

From: Becky Gibson <Becky_Gibson@notesdev.ibm.com>
Date: Wed, 15 Nov 2006 09:34:49 -0500
To: <w3c-wai-gl@w3.org>
Message-ID: <OF0A3E9420.2922C2E3-ON85257227.00500E85-85257227.004FEE33@LocalDomain>

>Failures could include:
>1.      Using measures which are based on a physical length (for example: 
px, in, pt in CSS)
I know it is a controversial subject, but I do have some concerns about 
creating a failure which outlaws the use of px.  Even the W3C Tips for 
Webmasters [1] doesn't speak against using px (although I will admit that 
reference, dated 2003 is rather old).  Also, px are listed as relative 
units in the CSS2 specification [2]. Since user agent support for 
different font sizing mechanisms seems to vary greatly and change over 
time, I'm not sure we should be making a specific recommendation. 

[1] http://www.w3.org/QA/Tips/font-size
[2] http://www.w3.org/TR/REC-CSS2/syndata.html#length-units

Becky Gibson
Web Accessibility Architect
IBM Emerging Internet Technologies
5 Technology Park Drive
Westford, MA 01886
Voice: 978 399-6101; t/l 333-6101
Email: gibsonb@us.ibm.com
Received on Wednesday, 15 November 2006 14:35:14 UTC

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