I cant move on about <aside></aside>tag in HTML5 its so confusing, can you please explain tome what is the purpose of that tag?

Question

mindBlowing 😢
https://code.sololearn.com/Ww4cOHSPKv6m/?ref=app

Answer 1

https://www.w3schools.com/tags/tag_aside.asp

Answer 2

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/aside

Answer 3

https://stackoverflow.com/questions/12522535/html5-aside-tag

Answer 4

It's just a tag name to let search engine understand the element.
To make it side bar element, you still need to use css to style it.

Answer 5

and how is it work? is it notify me example if i purchase something? and the transaction is done?