Can article and section be nested inside each other? How do they behave and what's the basic difference between them?

Answer 1

Html5 header, article, section, aside, footer tags behaves just like plain div tag.

They are used for giving hints to SEO, screen readers what type of content the divisions contain.

"Nesting <article> in <section> or Vice Versa?" section here: https://www.w3schools.com/html/html5_semantic_elements.asp clearly answers your question.

Answer 2

Yesss
It will just show a big box having your text written in article and the text of section will be inside another box in that big box... You can try it by using different colors of background for both...

Answer 3

Use span tag with float css selector
https://code.sololearn.com/WG5ferTgdbA6/?ref=app