<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2>
<div class="col-md-4">
<button><i class=md-icon-pus>ico</i><span>Ciao</span></button> e poi impostare:
</div>
<div class="col-md-4">
<button><i class=md-icon-pus>ico</i><span>mio esempio</span></button>
</div>
<div class="col-md-4">
<button><i class=md-icon-pus>ico</i> tolgo tag b</button>
</div>
</div>
</div>
