Is there really any point to using relative font sizing in CSS?

Question

I\'ve read a lot about the pros and cons of sizing with either relative or absolute font sizes. Fixed sizes don\'t zoom in IE6 but that\'s not much of an issue these days. A

Answer 1

According to YUI Font CSS,

Always use percentages as the units because they render more consistently than ems, and because they allow user-initiated resizing (unlike pixels).

Relative font sizes work pretty well when they are part of a framework like YUI. Especially because they normalize how fonts work across browsers.

Personally, I do throw in absolute px every once in a while, but typically only for text that must somehow match up size-wise with some other design elements (like a menu).

The % stuff does break down when you assign % to a certain element and then a different % to a contained element. But that's the only real gotcha I've found.