index.html

<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Responsive Side Menu</title>
        <link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.6.0/pure-min.css">
        <link rel="stylesheet" href="http://purecss.io/css/layouts/side-menu.css">
    </head>
    <body>
        <div id="side-menu-app"/>
        <script src="https://fb.me/react-15.3.0.min.js"></script>
        <script src="https://fb.me/react-dom-15.3.0.min.js"></script>
        <script src="purecss-side-menu.js"></script>
    </body>
</html>