<ul class="nav nav-tabs">
<li class="active"><a href="#tab1" data-toggle="tab">Shipping</a></li>
<li><a href="#tab2" data-toggle="tab">Quantities</a></li>
<li><a href="#tab3" data-toggle="tab">Summary</a></li>
</ul>
<div class="tab-content">
<div class="tab-pane active" id="tab1">
<a class="btn btn-primary btnNext" >Next</a>
</div>
<div class="tab-pane" id="tab2">
<a class="btn btn-primary btnNext" >Next</a>
<a class="btn btn-primary btnPrevious" >Previous</a>
</div>
<div class="tab-pane" id="tab3">
<a class="btn btn-primary btnPrevious" >Previous</a>
</div>
</div>