So I am reading <<epub3 best practice>>. And I stood upon two tags that is <section> and <article>. I have read the text, but I have no idea what exactly do they do in epub, seems noting happens after I add them in some test files.
I'm new here, if I did something wrong or awkward, feel free to correct me.
By the way, is there better way to learn how to make epub properly rather than reading Technical Documentation like <<epub3 best practice>>?