Answer 1

Pls use the search bar before posting.

https://www.sololearn.com/discuss/1608607/?ref=app
https://www.sololearn.com/discuss/814244/?ref=app
https://www.sololearn.com/discuss/1082431/?ref=app

Answer 2

Firstly, HTML is not a programming language. It serves as a markup language for web browsers.

To answer your question, SoloLearn introduces the fundamentals and useful parts of programming languages. It is up to the learner to expand on this knowledge through practice and research if they want to become better and better.

Answer 3

Only enough at the start. Later you must expand your horizons.