title: Bootstrap navbar doesn't work
body: <p>I'm building a web site using Bootstrap 3. On mobile version the collapse, hide the header part of the page.</p>
  
  <p>You can see the screen shot here:
  <a href="https://drive.google.com/open?id=0B7kEC5-m4btFclBpQUNxTWZLVkU" rel="nofollow noreferrer">https://drive.google.com/open?id=0B7kEC5-m4btFclBpQUNxTWZLVkU</a></p>
  
  <p>What is the correct way to solve the problem?
  Thank you in advance,
  Regards,
  Roberto</p>