Fix navbar to the top with Bootstrap

Set the navbar fixed to the top, add class .navbar-fixed-top to the .navbar class.

You can try to run the following code to fix navbar to the top

Example

<!DOCTYPE html>
<html>
   <head>
      <title>Bootstrap Example</title>
      <link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
      <script src = "/scripts/jquery.min.js"></script>
      <script src = "/bootstrap/js/bootstrap.min.js"></script>
   </head>
   <body>
      <nav class = "navbar navbar-default navbar-fixed-top" role = "navigation" style="background: red;">
         <div class = "navbar-header">
            <a class = "navbar-brand" href = "#">Modes of Transport</a>
         </div>
         <div>
            <ul class = "nav navbar-nav">
               <li class = "active"><a href = "#">Air Transport</a></li>
               <li><a href = "#">Water Transport</a></li>
            </ul>
         </div>
      </nav>
   </body>
</html>