Is it possible to find CSS rules from an HTML node via JavaScript?

Question

I want to get an element in the DOM and then lookup what rules in my CSS file(s) are contributing to it\'s appearance. Similar to what firebug or webkits inspector does. Is

Answer 1

A cross-browser solution I've had good success with is http://www.brothercake.com/site/resources/scripts/cssutilities/

It is very powerful and accurate, derives a lot more information than the webkit-only function mentioned above, and it works on all styles (including those that are cross-site and that aren't active or have been overridden).