When we executed the Cordova command to generate the application, it already created some HTML, CSS, and JavaScript for us. Let's organize it a little. I would like to see such a structure of the www folder:

.
├── assets
│    └── sprites
│      └── spheres.png
├── css
│    └── index.css
├── index.html
└── js
    ├── game.js
    ├── index.js
    └── phaser.js

In this structure, we should have the following elements:

Let's modify the index.html file so that the body content looks like this:

<div id="phaser"></div>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/phaser.js"></script>
<script...