I need your help please

Hi guys, how are you? I hope everything is okay. so I have a question, I would like to have an answer because it is very important for me. I started programming not too long ago in web promotion on developer.mozilla.org in the html and css course series. over time I manage to put a lot of things into focus but I have always lost a bit on the fact of knowing exactly the appropriate measures for a website i.e. the body and the other elements in relation to the body of the page.

Hello @Louv

you mean the best practice or something else?

if yes then check those

and

it has many best practice even it ment for accessibility but it help in other ways also

also at many topic in MDN there a section for best practice