title: Remove bootstrap dropdown caret
body: <p>I'm working on my personal portfolio with bootstrap and the navigation dropdown has a caret as you can see at <a href="http://portfolio.tomvervoort.net" rel="nofollow">http://portfolio.tomvervoort.net</a>.</p>
  
  <p>The caret next to portfolio is ok but when you click on portfolio the dropdown also has a white caret on top. Does anyone knows how to remove this one?</p>