I would call it hacking.. you sometimes run into those websites with 50 different opacity bits for all their web app things, and you don’t want to deal with all that rubbish so you set a “opacity: 1 !important” and the whole website looks off but it’s finally useable. I’d call that a hack.
Or also when you run into those websites designed on a $2000 screen that thinks it’s tres moderne to use 808080 text, so you “hack” it into readable text.