title: How to find unused CSS rules in a web app?
body: <p>I have 10+ CSS files and around 30+ HTML/JSP files. I want to search each and every class/id in CSS files one by one in all HTML/JSP files so that can remove the rules which are not being used.</p>
  
  <p>Is there any tool available to help in this?</p>
  
  <p>I know there are Chrome/FF plugins to eliminate useless CSS rules but they only work for single page.</p>