title: Is there a way to get a list of all the CSS applied to a HTML fragment or page?
body: <p>I know it's easy to get the CSS that is applied to a single node in HTML, using tools like the Firebug extension for Firefox, etc.</p>
  
  <p>But is there a way to see <em>all</em> the CSS that is in effect on an entire page, or a larger fragment of HTML?</p>
  
  <p>Specifically, we are cleaning up our one extremely large CSS file into smaller modules and would like to find out what CSS is used on a certain page, so we can move all the non-used CSS to another module.</p>