title: Remove space between container and navigation
body: <p>I have a simple container which has navbar in it. Here is the code 
  <a href="http://www.bootply.com/wPtXYaqV6m" rel="nofollow">http://www.bootply.com/wPtXYaqV6m</a></p>
  
  <p>I was expecting no space between the container and the navigation. How do I get rid of that space? </p>