Bootstrap Skeleton
This is a simple Bootstrap skeleton. You can fork it to get a ready to use Bootstrap fiddle.
HTML
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.0/bootstrap.min.js"></script>
<div class="modal hide fade" id="modal">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h3>Modal header</h3>
</div>
<div class="modal-body">
<ul class="nav nav-tabs">
<li class="active"><a href="#tab1" data-toggle="tab">Tab 1</a></li>
<li><a href="#tab2" data-toggle="tab">Tab 2</a></li>
</ul>
<div class="tab-content">
<div class="tab-pane active" id="tab1">
<h3>Tab 1</h3>
</div>
<div class="tab-pane" id="tab2">
<h3>Tab 2</h3>
</div>
</div>
</div>
<div class="modal-footer">
</div>
</div>
<button class="btn btn-large btn-primary" data-toggle="modal" href="#modal">Launch Modal</button>
CSS
@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap.css');
button {
margin: 10px;
}