<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>
<div class="container">
<div class="row">
<div class="col-md-4 col-md-offset-4">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Welcome to my site</h3>
</div>
<div class="panel-body">
<form role="form">
<fieldset>
<div class="form-group">
<input class="form-control" placeholder="E-mail" name="email" type="email" autofocus>
</div>
<div class="form-group">
<input class="form-control" placeholder="Password" name="password" type="password" value="">
</div>
<button type="button" class="btn btn-success btn-block">Login</button>
<p>New Member? <a href="signUp.html" class="">Sign up</a></p>
</fieldset>
</form>
</div>
</div>
</div>
</div>
</div>