Dust-Me Selectors: Find Unused CSS Selectors

Dust-Me Selectors is a really useful extension for Firefox that finds unused CSS selectors.

http://www.sitepoint.com/dustmeselectors/

“It extracts all the selectors from all the stylesheets on the page you're viewing, then analyzes that page to see which of those selectors are not used. The data is then stored so that when testing subsequent pages, selectors can be crossed off the list as they're encountered.”

If there is a site map (we really ought to create one for Rapattoni.com) it can also go through your entire site.