This repo is concept art.
The concept is displaying a photo as a single HTML div using CSS.
CSS generated by a python script. Inspired by Lynn Fisher. There is literally no practical use for this as it stands. Trust me, I spent at least a minute trying to think of some obscure fantastical use-case where you'd need 4.6MB of CSS instead of 50KB of jpeg. If you can think of one, let me know.