<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="/lib/bootstrap.min.css">
<script src="/lib/jquery-1.12.2.min.js"></script>
<script src="/lib/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h2>Responsive Embed</h2>
<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" src="../../www.youtube.com/embed/XGSy3_Czz8k/index.html"></iframe>
</div>
</div>
</body>
</html>