index.html

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, height=device-height, minimum-scale=1.0, initial-scale=1.0, user-scalable=0">
        <title>Document Viewer Example</title>
        <style>
            html, body{
                width: 100%;
                height: 100%;
                margin: 0;
                background-color: #F5F5F5;
            }
        </style>
        <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
    </head>
    <body>
        <div id="example" style="width: 100%; height: 100%;"></div>

        <!-- Main -->
        <script src="assets/bundle.js"></script>
        <script src="assets/main.bundle.js"></script>
        <script src="assets/vendors.bundle.js"></script>
    </body>
</html>