<meta name="viewport" content="width=device-width, initial-scale=1">

<link rel="stylesheet" href="/static/lib/bootstrap/4.0.0/css/bootstrap.min.css">

<script src="/static/lib/jquery/3.3.1/jquery.min.js"></script>

<script src="/static/lib/popper.js/1.12.9/umd/popper.min.js"></script>

<script src="/static/lib/bootstrap/4.0.0/js/bootstrap.min.js"></script>

<style>

body {

    position: relative;

}

ul.nav-pills {

    top: 20px;

    position: fixed;

}

div.col-8 div {

    height: 500px;

}

</style>

</head>