I’ve been reading up on the developing CSS3 spec and was intrigued when I found the re-introduction of the ‘font-size-adjust’ property. I love the idea of maximizing legibility in font substitutions.

The biggest problem I found was, how is someone supposed to find the font aspect ratio? The key is finding the x-height. Here’s a tool to do it.

http://kemosite.com/?page_id=64