Bootstrap 3 Template
This is a simple Twitter Bootstrap 3 template. You can fork it to get a ready to use Bootstrap 3 fiddle.
HTML
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<div class="col-md-3" id="left-accordion">
<!-- first set of buttons -->
<div class="panel panel-default">
<div class="panel-heading" role="button" data-toggle="collapse" data-target="#baselayer">CLICK ME<br/>
<span style="font-size:1.25em;color:#fff;" class="glyphicon"></span>
</div>
<div class="collapse" id="baselayer">
<div class="well selections base-buttons" id="softbutton" role="button">Bulbasaur<br/>
<div class="selected">
</div>
</div>
<div class="well selections base-buttons" id="medbutton" role="button">Charmander<br/>
<div class="selected">
</div>
</div>
<div class="well selections base-buttons" id="firmbutton" role="button">Squirtle<br/>
<div class="selected">
</div>
</div>
</div>
</div>
</div>
CSS
.panel-default > .panel-heading {
color: red;
background-image: url('https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/English_Pok%C3%A9mon_logo.svg/2000px-English_Pok%C3%A9mon_logo.svg.png');
background-repeat: no-repeat;
background-position: center;
background-size: 110%;
border: none;
}
JavaScript
/* Latest compiled and minified JavaScript included as External Resource */