not sure if I missed it but how do you get the animated background?

If you include a url to a gif in the background segment it will work:

url(https://i.imgur.com/BkgF7ET.gif)

^ Bit of a loud example that one

I also recommend making all the tiles transparent when you have a nice background:

rgba(255, 255, 255, 0.2)

Thanks for sharing that gif! The author has some amazing ones posted on their Twitter: https://twitter.com/AnasAbdin

ah ok tyvm