NES.css: 8-bit style CSS framework
Fascinating! As a joke, I wrote a similar CSS stylesheet recently that simulated the look and feel of a greenscreen mainframe app, complete with bright green text and blocky containers (I spent maybe all of an hour on it over a few days of tinkering). I added it as an style option in a web app that was supposed to replace a legacy system and the customer absolutely loved it. Unfortunately I had to explain it was a joke.