“Your viewport concerns me. Hey! You're seeing this message because of your screen- specifically, the width of it. I'm hyped you're here, but this game wasn't designed for small screens, and you will not enjoy attempting it. I mean, would you write code on your phone? Actually, don't answer, because I don't want to know. Anyway, hope to see you soon on a desktop. -Marcos”

Hopefully “Marcos” doesn’t need a job any time soon! :D

Unsure if the site is supposed to be satire or something because that is the message I received, however, CSS, including responsive design, is actually simple to pick up.

Note that I’m not a designer at all (because THAT requires actual skill), just a dev.