Quote:
Originally Posted by HarryT
"1em" is useful, although it is, as you rightly say, the default, because it allows the font size to be easily changed. If you set "1em" as the font size for something, and you later decide that you'd like it to be a little larger, it's easier to change "1em" to "1.2em" than to have to insert a new line into the CSS.
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Actually, it's not easier because you first have to insert the 1em and then change it to 1.2em when all you have to do is insert the 1.2em the first time instead of inserting 1em and then having to change it. Doing it wrong the first time just because you might want to change it later is bad practice.