<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="//code.jquery.com/jquery-1.11.1.min.js"></script>
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
<div class="container">
<div class="row">
<br/>
<form>
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-envelope fa-10x"></i></span>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email" required="required">
</div>
<br/>
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-key fa-10x"></i></span>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password" required="required">
</div>
<br/>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</div>
