Good game, made me experience joy and disbelief. I'm not sure html/css is a great tool to make games, still, impressive.
For this kind of game that uses a lot of UI for it's gameplay, I think it makes sense to use html and css.
I'm glad you played the game!
I think it works if you plan well, and don't need to simulate a 2D/3D world space.
For me it was really fast to create and add new things to. The Total file space is ~2mb, so it basically loads instantly. plus, no compile time.
