title: How to remove unused styles from twitter bootstrap?
body: <p>My bootstrap stylesheet size is around 120kb. </p>
  
  <p>But I'm only using 25% of that stylesheet code.  </p>
  
  <p>I don't want that span* class. I tried it by customizing it in bootstrap <a href="http://twitter.github.com/bootstrap/customize.html" rel="noreferrer">customize page</a>.  </p>
  
  <p>I unchecked grid system,  But I still see <code>span1 - span12 class</code> in forms, tables and responsive layouts. </p>
  
  <p>Can someone help me to remove those codes? </p>