Example:
<SPAN style="font-size:xx-small" >extra small</SPAN>

By default IE and Mozilla will render xx-small as a font having size 7.5 pt.
Following W3C recommendations the size should be 8.3 pt.

All other font sizes (x-small...xx-large) seems follow the recommended rule:
S(n) = 1.2 * S(n-1)

Does anybody has an idea why xx-small is so special?

Thanks in advance,

Andrew Fedoniouk,
http://terrainformatica.com/htmengine