<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>
<div id="feedback">
<a href="#popup1">Quick Enquiry</a>
</div>
<div id="popup1" class="overlay">
<div class="popup">
<div class="div1" style="background:#fff">
<a class="close" href="#">×</a>
<div class="content" id="quickenquire">
<h3 style="text-align:center">Send Enquiry</h3>
<form action="#">
<label for="name">Name</label>
<input type="text" id="name" name="name">
<label for="email">Email Id</label>
<input type="email" id="email" name="email">
<label for="comment">Your Message</label>
<textarea></textarea>
<label for="contact">Contact No</label>
<input type="text" id="contact" name="contact">
<label for="country">Country</label>
<select id="country" name="country">
<option value="australia">Australia</option>