title: CSS - Multiple images in one and using CSS to determine a background
body: <p>If you don't know what I mean, check this image out:</p>
  
  <p><a href="http://static.ak.fbcdn.net/rsrc.php/z3JQK/hash/11cngjg0.png" rel="noreferrer">Multiple images</a></p>
  
  <p>I want to know how it works, CSS yes, but exactly how does it all work out when using a background using this image and then it is all cut all exactly what it is supposed to do - when determined as a background for this image.</p>
  
  <p>Would be interesting for me to know how - so I can take my CSS level up a bit more :P</p>
  
  <p>Thanks</p>