for css references i usually visit https://developer.mozilla.org/en-US/docs/Learn/CSS or https://www.w3schools.com/css/default.asp for basic css stuff 🫡 cuz ill be honest i cant rmr EVERYTHING ever god bless. a lot of it is also experimentation and suffering... and sometimes i dissect other creators' layouts if i want to figure out how to do a specific something (mostly slaughters and kaibacorporate bc theyre my friends and they said i could). i also have a lot of built up experience using carrd. i COULD make a resource page for css/html if thats something people want... maybe...