<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>
<body class="hm-gradient">
<main>
<div class="container mt-4">
<div class="text-center darken-grey-text mb-4">
<h1 class="font-bold mt-4 mb-3 h5">Built with Material Design for Bootstrap 4</h1>
<a class="btn btn-danger btn-md" href="https://mdbootstrap.com/material-design-for-bootstrap/" target="_blank">Free download<i class="fa fa-download pl-2"></i></a>
</div>
<nav class="navbar navbar-expand-lg navbar-dark teal mb-4">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown
</a>
<div class="dropdown-menu dropdown-primary" aria-labelledby="navbarDropdownMenuLink">
