HOW TF DOES THIS WORK????

woOOooOo
s o
it'S 3 AM and i haven't done any homework and instead of doing it I'm trying to customize my f-cking layout and all of t h a t
T F IS A CSS?????
anyways--
i hope everyone is healthy and happy tho :)

edit
SOMEONE REALLY NICE SENT ME A SITE THAT HELPED ME OMG HSGAUFHASJFAJFAHF

thank you again<3