title: Make a div stretch left to infinity
body: <p>I am looking to have <code>&lt;h2&gt;</code> tags stretch the background to the left of the browser window but don't seem to be able to.  Can anyone help?</p>
  
  <p>Jsfiddle here: <a href="http://jsfiddle.net/4fm8x/20" rel="nofollow">jsfiddle.net/4fm8x/20</a></p>
  
  <p>The wrapper div is needed for centring the page on larger resolution screens.  I would like to keep this centred if possible.</p>