<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 href="http://fonts.googleapis.com/css?family=Bree+Serif" rel="stylesheet">
<p class='text-center'>
<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#demo">
Open Modal
</button>
</p>
<div class="modal fade" id="demo" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">x</button>
<h3>Login to MyWebsite.com</h3>
</div>
<div class="modal-body">
<form method="post" action='' name="login_form">
<p><input type="text" class="span3" name="eid" id="email" placeholder="Email"></p>
<p><input type="password" class="span3" name="passwd" placeholder="Password"></p>
<p><button type="submit" class="btn btn-primary">Sign in</button>
<a href="#">Forgot Password?</a>
</p>
</form>
</div>
<div class="modal-footer">
New To MyWebsite.com?
<a href="#" class="btn btn-primary">Register</a>
</div>
</div>
</div>
</div>