<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<svg width="120px" height="60px">
<path class="infinity-path" stroke="#fff" d="M 30 10 a 20 20 0 1 0 0 40 c 20 0 40 -40 60 -40 a 20 20 0 0 1 0 40 c -20 0 -40 -40 -60 -40"></path>
</svg>