Ok I took a look at tutorial videos for HTML5 Canvas. I understand the basics that we are creating a canvas - or white space on our web page - and can then draw, animate and interact with the elements. All good so far, but when they started talking about HTML and JavaScript they lost me. I've posted the videos that I watched, but way over my head at this point.

https://www.youtube.com/watch?v=LQPKzf_G18Q
https://www.youtube.com/watch?v=EO6OkltgudE&list=PLpPnRKq7eNW3We9VdCfx9fprhqXHwTPXL&index=2&t=0s
https://www.youtube.com/watch?v=T2lBVYrtPO8