remove unused css rules in bootsrap

Question

I'm using bootstap template, I need to reduce my file size, I realize that there are more CSS rules are unused, I did this using dust me spider, how can I remove all unused rules from my CSS file

Answer 1

• grunt-uncss plugin to clean up unused CSS.
• Helium CSS is a javascript tool for discovering unused CSS
• CSSESS is a bookmarklet that helps you find unused CSS selectors on any site.
• You could try the Firefox Dust-Me Selectors add-on.