I have built a "responsive" website using by combining blocks from several different templates. The problem now is that the css file is 5,000 lines and chrome suggests %84 of my css is unused. Ive tried to remove unused css by using a couple different firefox plugins. The problem is the output css file looses its responsive properties. What is the best way for cleaning this up?
link to website http://buyfuelpump.com/shop.php?u=fuelpumps