font-size-adjust is supposed to specify the aspect ratio of the first font
in a family... e.g.
font-family: Verdana, 'Times New Roman', serif;
font-size: 12pt;
font-size-adjust: 0.58;
In "Cascading Style Sheets", Second Edition, by Hakon Wium Lie and Bert
Bos., the discussion of font-size-adjust begins on page 112. Here's an
excerpt from page 113:
"For example, if 10px Verdana (with an aspect value of 0.58) was unavailable
and an available font had an aspect value of 0.46, the font-size of the
substitute would be 10px * (0.58/0.46) = 12.61px"
This quote applied to:
BODY {
font: 10px Verdana, Times New Roman;
font-size-adjust: 0.58;
}
The example given clearly shows that the browser "knows" the x-height of
"Times New Roman" to do the calculation. I don't see why a CSS coder should
"need" to code the x-height of the first font, Verdana?
Wouldn't it make more sense to simply enable or disable font-size-adjust?
What am I missing?
Sam
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