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Re: stylesheet's relative versus absolute

From: David Woolley <david@djwhome.demon.co.uk>
Date: Sun, 6 May 2001 15:25:16 +0100 (BST)
Message-Id: <200105061425.f46EPGm18893@djwhome.demon.co.uk>
To: w3c-wai-ig@w3.org
> 
> As 'px' is device-dependent, it is not absolute nor realtive.  Therefore, is
> there an issue to use 'PX' fonts sizes and margins in Stylesheets?

For any one device it is absolute, which means that the user of that
device cannot override the size to make it readable.  It means that
someone with a high resolution screen cannot actually make use of
the resolution to achieve better formed, and therefore more readable,
characters.  (Note that heavily image dependent pages may well make the
use of a low screen resolution, to obtain large characters, impracticable,
because of the resultant need for scrolling.)

In terms of the reasons for these rules, pixel sizes are the same as
absolute.

Note that HTML was not intended to be a means of controlling visual
presentation, and, even with style sheets, current browsers cannot
simultaneously support users with poor vision and reproducible formatting.
If you are asking questions about font sizes, you need to ask yourself
whether you really understand the medium you are trying to use.
Unlike PDF, it is not intended to produce an exact facsimile of a paper
document.

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Received on Sunday, 6 May 2001 13:13:42 GMT

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