title: Refactoring and removing unused CSS from SASS/LESS files
body: <p>I am working on a big <strong>single page application [backbonejs and rails]</strong> which has LESS as the CSS preprocessor and the generated .css files has grown to such an extent that for IE we have to split it into 3 files with <a href="http://blesscss.com/">http://blesscss.com/</a></p>
  
  <p>Though there are tools to detect unused css and linting css, I am unable to find a proper solution for refactoring LESS/SASS files directly from uncompiled files instead of a single large generated .css file.</p>
  
  <p>Would like to know what is the best approach doing these tasks?</p>
  
  <p>Thanks in advance !</p>