A playable game of pong powered only by CSS!
It was designed to be hosted on a subreddit, so you can play it at reddit.com/r/csspong
I tried to explain how it works over there
I used webpack to be able to use sass/scss and also iterate faster.
You should be able to do npm install then npm start to make it run locally.
The "build" for a subreddit consists of structure.md that goes in the sidebar and css/pong.css. (npm run build or ./build.sh)