Yeah, sorry about that. I made the minimum width around 1000 pixels (you can check the body selector in the CSS). I might try fixing that soon, although I'm still a beginner so I might not be able to just yet. You can probably tell that the CSS isn't very well written: there are unused variables, constants everywhere, and the animation is very hacky. This is because I made this page to mainly to practice my CSS skills.

Already mentioned it above, but practice to the point of making it look good on mobile. It will be a worthy learning experience.