On 2/16/07, Willie Wilson <[EMAIL PROTECTED]> wrote:

> Wouldn't "font-size: 10px;" do the same thing?

Indeed it would, but then the text wouldn't resize in IE5 and 6. Using
percentages and ems across the board keeps it scalable in those
versions, if that's important to you :)

>  It's 62.5% of what, exactly?  The user's font size?

62.5% of the browser's default size, which is usually 16px. The user
can obviously alter this, either via a user style sheet or via a
browser's built-in scaling mechanism. User options override browser
defaults, which is why text sized in this way remains scalable, even
in IE<7.

And remember, Rich first gave this to the world in *2004* and times
have been a-changin'. I recommend reading his original post (and the
comments) at http://www.clagnut.com/blog/348/. As IE6 dwindles away
the 62.5% = 10px approach may become meaningless for font sizing, but
I still like it for elastic layouts.

-- 
Craig, www.focalcurve.com
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