我正在尝试在下拉菜单中包含一个图标。该图标导致菜单呈现不正确(似乎图标在菜单栏和菜单上重复出现)。片段:
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<button type="button" class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="brand" href="#">Project X</a>
<div class="nav-collapse">
<ul class="nav">
<li class="active"><a href="#">Home</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
Menu 1
<b class="caret"></b>
</a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="nav-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<ul class="nav pull-right">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
Menu 2
<b class="caret"></b>
</a>
<ul class="dropdown-menu">
<li><i class="icon-off"><a href="#">Logout</a></li>
</ul>
</li>
</ul>
</div>
</div>
</div>
知道是什么原因造成的吗?