CSS with if/then browser logic

Question

For browsers < IE7, I want to use a certain style attribute, while for other browsers I\'d like to use another. Can I do this using a single css file, or do I have to do

Answer 1

You can use CSS Expressions to some extent.

See http://gadgetopia.com/post/2774 for some examples. These don't get around conditional CSS attributes per se, but they do allow you to dynamically vary the values of CSS attributes.