title: Pure JavaScript: Center an absolute position div in body
body: <p>What's the easiest and shortest way to center an absolute position div in the body without using a library like jQuery. Thank you!</p>
  
  <p>Edit:
  Something like <a href="http://jsfiddle.net/apfwh/" rel="nofollow">http://jsfiddle.net/apfwh/</a> but maybe with a bit cleaner?</p>