The page menu consists of list of items, each of which can also be a dropdown.
Menu items can also be given a class to bring in some default stylings ("active" or "disabled").
<ul class="nav nav-pills">
<li class="active">
<a href="#">
Menu Item 1
</a>
</li>
<li class="disabled">
<a href="#">
Menu Item 2
</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-hover="dropdown">
Menu Item 3
<span class="caret"></span>
</a>
<ul class="dropdown-menu">
<li>
<a href="#">
Menu Item 3a
</a>
</li>
<li>
<a href="#">
Menu Item 3b
</a>
</li>
<li>
<a href="#">
Menu Item 3c
</a>
</li>
</ul>
</li>
</ul>