What are built-in HTML5 tags???

Answer 1

There are no such things as built-in html tags.
The set of tags you use depend on the version of html you specify

Answer 2

Thank s for support✌👌👌

Answer 3

Html5 has many built in tags. Check out the tutorial here and you will know.

Answer 4

On w3schools.com you have a lot of informations about the languages for the web. Here's their inventory for the HTML5 tags:

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