image.png
<div class="dropdown">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
下拉菜单<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><a href="#">菜单项1</a></li>
<li class="disabled"><a href="#">菜单项2</a></li>
<li><a href="#">菜单项3</a></li>
</ul>
</div>
