Sent by Felix Miata on 7 February 2010 09:09
On 2010/02/07 03:50 (GMT-0500) Felix Miata composed:
> Resolution is irrelevant to anything unless right along with it is known the
> size of the display. Combined they result is what is variously called PPI or
> DPI, which is a measure of screen pixel density. The higher the DPI, the more
> pixels are required to make text legible or an image large enough to show
> adequate detail. For example, your 1280x1024 on a 15" display is 109 DPI, on
> 17" 96 DPI, and on 19" 86 DPI. http://fm.no-ip.com/auth/dpi.xhtml
It's late and I failed to finish the example before sending. On the 17"
display above, it takes 16px to make a 12pt (nominally .166" tall) font. On
the 15" that same 16px makes only a 10.6pt (nominally .146" tall) font, while
on the 19" a 13.4pt (nominally .186" tall). That's a 27% taller text on the
19" compared to the 15". You don't know whether the 19" user chose that size
because he wants bigger stuff, or more small stuff, or some mixture of the
two. Likewise you don't know whether the 15" user had a choice, or whether
he's happy with it, or already complains things are too small. So, you
should not be second guessing what size is right for them, or the 17"
1280x1024 users, or the handheld users, or the HDTV users, or any of the
others, and instead defer to whatever sizes are set as their browsers'
defaults for web page main body text.
And all you need to do to achieve that via CSS is nothing at all! As long as
your IE 6 user base is not a priority, the only sizing that you need to apply
is on text that you believe needs to differ in size from main body text, such
as footers, headers, superscripts, subscripts, etc. If old IE version users
matter, then one little addition covers them too, confirming the browser
default setting by applying a font-size of 100% on either the HTML or the
BODY element.
--
"Our Constitution was made only for a moral and religious
people. It is wholly inadequate to the government of any
other." John Adams, 2nd US President
Team OS/2 ** Reg. Linux User #211409
Felix Miata *** http://fm.no-ip.com/
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