Could you build an online game using just HTML, CSS and JavaScript? Absolutely! And this book might just help you make that happen. The starting point of Build an HTML5 Game: A Developer’s Guide ...

You could always store HTML, JavaScript and CSS files on Google Drive, but now you can host and share their content too.

Now [Andy Green] has extended the possibilities with affordable silicon, by producing a proof-of-concept HTML + CSS renderer over h2 on ESP32 for libwebsockets.