<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-T8Gy5hrqNKT+hzMclPo118YTQO6cYprQmhrYwIiQ/3axmI1hQomh7Ud2hPOy8SP1" crossorigin="anonymous">
<div class-"conatiner">
<div class="icon">
<span class="fa-stack fa-2x" aria-hidden="true">
<i class="fa fa-heart-o fa-stack-1x fa-inverse"></i>
</span>
<span class="fa-stack fa-2x" aria-hidden="true">
<i class="fa fa-home fa-stack-1x fa-inverse"></i>
</span>
<span class="fa-stack fa-2x" aria-hidden="true">
<i class="fa fa-frown-o fa-stack-1x fa-inverse"></i>
</span>
<span class="fa-stack fa-2x" aria-hidden="true">
<i class="fa fa-futbol-o fa-stack-1x fa-inverse"></i>
</span>
</div>