http://www.w3.org/TR/REC-CSS2/fonts.html#value-def-absolute-size
recommends a 1.2 scaling factor for "absolute" font sizes, and suggests
a base font size of 12.
Given that there are +3/-3 sizes
[ xx-small | x-small | small | medium | large | x-large | xx-large ]
I tried to make the calculations in PX, EM, and % but I don't think I'm
doing it correctly (never been good at the math :-(
Here's what I came up with:
xx-large = 20.7px
x-large = 17.3px
large = 14.4px
medium = 12px
small = 10px
x-small = 8.3px
xx-small = 6.94px
That seems pretty straight-forward.
What I can't seem to get through my cement-like cranium is how that
transfers to EM and % sizes.
These are my calculations for EM:
xx-small = .58em
x-small = .69em
small = .83em
medium = 1em
large = 1.2em
x-large = 1.44em
xx-large = 1.73em
xx-small = 57.8%
x-small = 69%
small = 83.3%
medium = 100%
large = 120%
x-large = 144%
xx-large = 172.8%
Does any of this sound logical? I seem to recall someone (Eric?) awhile
back saying that EM is not exactly %, i.e. .8em ~= 80%
I'm trying to put this into practice at
http://tntluoma.com/css/tests/font-sizes.html
TjL
--
30 Days to becoming an Opera Lover
http://www.tntluoma.com/switch
Day 25: Opera does Plug-ins (better than the other guys) too
http://tntluoma.com/opera/lover/day25-plugins/
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