This page is for now more like a playground... It's showcasing some of what can be done from a Single Page Appliction (aka SPA).
All is done on the client side (HTML5, CSS3, ES6), there is no server side computing involved.
There is absolutely no external library involved on the client side.
It does not even pretend to look good. And Safari might not like all of it (it does not support 100% of HTML5)...