Browser size is irrelevant to font-size. Except in special cases,
fonts should always be specified in ems. This makes everything
relative to a 'base fonts-size' for that element. All em sizes
eventually relate back to the BODY font-size, which should usually be
specified as a percent. Here is a simple example...
body { font-size: 90%; }
h1 { font-size: 1.75em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.3em; }
p, table { font-size: 1em; }
.small { font-size: 0.8em; }
Using fonts like this allows all browsers (including IE) to resize the
fonts to suit the user's preference. It is a bad habit of many web
designers to use tiny fonts because 'it looks good', without
considering the usability of the site when viewed in high resolution
or by users with less-than-perfect eyesight.
So the UI theme stylesheets are simply following best-practices. Plus
em-sizes are compatible with any website, even those that do not use
ems in their own stylesheets (as they should). Using any other measure
- even percent - could give unexpected results.
/Kevin
On Feb 9, 12:56 am, Yosef <yosef...@gmail.com> wrote:
> Why in themes font size in em?if user reduce or increase size of
> browser if its in em only half of letter will be visible
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