Responsive Bootstrap Newsletter Subscription Form

1<section class="home-newsletter">
2    <div class="container">
3        <div class="row">
4            <div class="col-sm-12">
5            	<div class="single">
6            		<h2>Subscribe to our Newsletter</h2>
7            	<div class="input-group">
8                     <input type="email" class="form-control" placeholder="Enter your email">
9                     <span class="input-group-btn">
10                     <button class="btn btn-theme" type="submit">Subscribe</button>
11                     </span>
12                      </div>
13            	</div>
14            </div>
15        </div>
16    </div>
17</section>