<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<header>
<div class="container-fluid">
<div class="jumbotron hero">
<nav class="navbar">
<div class="container">
<div class="navbar-header">
<div class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="glyphicon glyphicon-menu-hamburger"></span>
</div>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div id="navbar" class="collapse navbar-collapse navbar-right">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
<hr class="hidden-sm hidden-md hidden-lg" style="margin: 0 30px;">
</div>
</div>
</nav>
<div class="text-center hero-row">
<h1 class="heading"><span>HERO</span> Design</h1>
<h2 class="subheading">Full screen Hero Style</h2>
<div class="btn-group">
<button class="btn btn-lg btnx-blue" type="button">Read more</button>
<button class="btn btn-lg btnx-white" type="button">Contact us</button>
</div>
</div>
<div class="row header-features text-center hero-row hero-bottom">
<div class="col-sm-6 col-md-4 col-lg-4">
<span class="glyphicon glyphicon-pencil"></span>