下面这段代码有什么问题..除了菜单下拉菜单外,一切正常。
<div class="navbar">
<div class="navbar-inner" >
<div class="container">
<ul class="nav">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown"> Services <b class="caret"></b> </a>
<ul class="dropdown-menu">
<li><a href="#">Web Design</a></li>
<li><a href="#">Web development</a></li>
<li><a href="#">Wordpress Theme development</a></li>
</ul>
</li>
</ul>
<ul class="nav pull-right">
<li ><a href="javascript:;" style="font-size:17px; color: rgb(11, 0, 134);"> Hello, <?php echo "Admin"; ?> </a></li>
</ul>
</div>
</div>