<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>
<head><link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css"></head>
<div class="container">
<div class="row block-center">
<div class="col-sm-4 col-sm-offset-4" id="form-box">
<form action="#" method="#">
<div class="panel panel-success">
<div class="panel-heading" id="panel-heading">
<h2 class="titre">CONNEXION</h2>
</div>
<div class="panel-body">
<form class="form" method="post">
<div class="form-group has-success">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-envelope fa-fw"></i></span>
<label for="email" class="sr-only"></label>
<input type="email" class="form-control" id="email" name="email" placeholder="Email address" required/><br/>
</div>
</div>
<div class="form-group">
<div class="input-group has-success">
<span class="input-group-addon"><i class="fa fa-key fa-fw"></i></span>
<label for="password" class="sr-only"></label>
<input type="password" class="form-control" id="password" name="password" placeholder="Password" required/><br/>
</div>
</div>
<div id="remember" class="checkbox">
<label>
<input type="checkbox" value="remember-me"> Remember me
</label>
</div>
<span id="clear"></span>
<button type="submit" class="btn btn-success btn-lg btn-block" >Sign In</button><br/>