<%= nav pills => [
['Item 1', ['#'] ],
['Item 2', ['#'], active ],
['Item 3', ['#'] ],
['Item 4', ['#'], disabled ],
]
%>
<ul class="nav nav-pills">
<li><a href="#">Item 1</a></li>
<li class="active"><a href="#">Item 2</a></li>
<li><a href="#">Item 3</a></li>
<li class="disabled"><a href="#">Item 4</a></li>
</ul>