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Old 09-13-2010, 08:21 PM   #7
WebDesignEbooks
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Quote:
Originally Posted by James_Wilde View Post
how long is an em? Is it a constant or is it dependent upon the typeface?

Quote:
1em is equal to the current font size. 2em means 2 times the size of the current font. E.g., if an element is displayed with a font of 12 pt, then '2em' is 24 pt. The 'em' is a very useful unit in CSS, since it can adapt automatically to the font that the reader uses
CSS Units - w3schools
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