title: Margin Bottom Not Working
body: <p>What is preventing margin bottom from working here?
  <a href="http://jsfiddle.net/cq8VC/1/" rel="nofollow noreferrer">http://jsfiddle.net/cq8VC/1/</a></p>
  
  <p>I just want the active one to be jumping up in the air about 10px.</p>