title: Make div 100% height inside another DIV
body: <p>I need to balance the height of a div which is next to other, I am using Bootstrap and I can not do the same size.
  <a href="http://i.stack.imgur.com/pqBMh.png" rel="nofollow">Columns</a>
  <a href="http://i.stack.imgur.com/npVFp.png" rel="nofollow">Divs</a></p>