bootstrapnavtemplate.html

<header>
  <div class="navbar-header">
      <a href="#" class="navbar-brand">Brand</a>
  </div>
  <div class="collapse navbar-collapse" id="collapse">
      <ul class="nav navbar-nav">
          <li class="active"><a href="#">Home</a></li>
          <li class="dropdown">
              <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a>
              <ul class="dropdown-menu">
                  <li><a href="#">dropdown item</a></li>
              </ul>
          </li>
          <li><a href="#">About</a></li>
      </ul>
  </div>
</header>