1<div class="nav navbar-default navbar-fixed-top"> 
 2  <div class="navbar-header">
 3    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
 4      <span class="sr-only">Toggle navigation</span>
 5      <span class="icon-bar"></span>
 6      <span class="icon-bar"></span>
 7      <span class="icon-bar"></span>
 8    </button>
 9    <a class="navbar-brand" href="index.php">Trax</a>
10  </div>
11  <div class="collapse navbar-collapse navbar-ex1-collapse">
12    <ul class="nav navbar-nav">
13      <li><a href="input.php">Input</a></li>
14    </ul>
15  </div>
16</div>