<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>
<div class="container" >
<div class="row">
<div class="col-md-4" style="background:#e2e2e2">
<h3></h3>
<input class="name" name="username" placeholder="First Name" required="" type="text">
<input class="name" name="phoneno" placeholder="Phone No." required="" type="text">
<input class="email" placeholder="E-Mail" name="email" required="" type="email">
<input class="password" placeholder="Password" name="password" required="" type="password">
<input class="password" placeholder="Confirm Password" name="password" required="" type="password">
<input value="Register" type="submit">
</div>
</div>
</div>