title: How to crop a background image when using sprite
body: <p>here is the file  : <a href="http://studioteknik.ca/stackoverflow_question/test1.html" rel="nofollow">http://studioteknik.ca/stackoverflow_question/test1.html</a> i need to see only one background image at the time, let's say the second. It's 400 pixel from the top, but i need it image to be crop top 400 height. HOW TO DO THAT ?</p>