title: How to fix div on scroll
body: <p>If you scroll down the page in the following URL, the 'share' div will lock onto the browser:</p>
  
  <p><a href="http://knowyourmeme.com/memes/pizza-is-a-vegetable" rel="noreferrer">http://knowyourmeme.com/memes/pizza-is-a-vegetable</a></p>
  
  <p>I'm assuming they are applying a <code>position: fixed;</code> attribute. How can this be achieved with jQuery?</p>