title: Negative top margin not working in IE 8 or 9
body: <p>I have a div with <code>margin-top:-200px</code>. I want the div to move up/behind the div above it. </p>
  
  <p>Works great in all browsers except IE so far. <code>margin-top:200px</code> works, so I know it's not a collapsing margin issue.</p>
  
  <p>Is there a bug I am not aware of here?</p>