<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="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<body class="pop-up">
<div id="pop-up">
<div class="container">
<h1>SUBSCRIBE OUR WEBSITE</h1>
<p>This Designe By <strong>RAJ KUMAR</strong> Enter your E-mail and animated subscribe form.</p>
<input type="email" placeholder="email" required>
<button>SEND</button>
<div class="cross" ><i class="fa fa-times" style="color: #fff;"></i></div>
</div>
</div>
</body>