Quote:
Originally Posted by Jellby
I could be wrong, but no, it's 100% of the font size of the parent element (which will probably be <body>), so it's effectively the same as 1.00em, but far more understandable, in my opinion.
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If the program being used respects the correct default values for h?, then <h4> will give 1em.
IMHO, 100% is not as understandable as you have to know what the the what the 100% is 100% of. If you use 1em as the font size, you know it's 1em. So 120% would be 20% larger then 100%, but you still don't know what 100% translates to so how would you know what 120% is other then 20% larger then 100%?