<nav?role="navigation"?class="navbar?navbar-default?navbar-static"?id="navbar-example2">
??????<div?class="container-fluid">
????????<div?class="navbar-header">
??????????<button?data-target=".bs-example-js-navbar-scrollspy"?data-toggle="collapse"?type="button"?class="navbar-toggle?collapsed">
????????????<span?class="sr-only">Toggle?navigation</span>
????????????<span?class="icon-bar"></span>
????????????<span?class="icon-bar"></span>
????????????<span?class="icon-bar"></span>
??????????</button>
??????????<a?href="#"?class="navbar-brand">Project?Name</a>
????????</div>
????????<div?class="collapse?navbar-collapse?bs-example-js-navbar-scrollspy">
??????????<ul?class="nav?navbar-nav">
????????????<li><a?href="#fat">@fat</a></li>
????????????<li><a?href="#mdo">@mdo</a></li>
????????????<li?class="dropdown">
??????????????<a?aria-expanded="false"?role="button"?data-toggle="dropdown"?class="dropdown-toggle"?id="navbarDrop1"?href="#">Dropdown?<span?class="caret"></span></a>
??????????????<ul?aria-labelledby="navbarDrop1"?role="menu"?class="dropdown-menu">
????????????????<li><a?tabindex="-1"?href="#one">one</a></li>
????????????????<li><a?tabindex="-1"?href="#two">two</a></li>
????????????????<li?class="divider"></li>
????????????????<li><a?tabindex="-1"?href="#three">three</a></li>
??????????????</ul>
????????????</li>
??????????</ul>
????????</div>
??????</div>
????</nav>