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>
<a href="#login" role="button" class="btn btn-primary" data-toggle="modal">Login</a>
<div id="login" class="modal hide fade in">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h3><spring:message code="login.dialog.title" /></h3>
</div>
<div class="modal-body">
blaat
</div>
<div class="modal-footer">
<button class="btn" data-dismiss="modal" aria-hidden="true">Close</button>
<button class="btn btn-primary">Login</button>
</div>
</div>
CSS
@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap.css');
.container {
margin-top: 10px;
}