Any good reference for HTML 5?

Question

Seeking for good reference for HTML 5

Answer 1

https://code.sololearn.com/WLERR0KIgB86/?ref=app

Answer 2

https://www.w3schools.com/html/default.asp
https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5

https://www.sololearn.com/discuss/617443/?ref=app
https://www.sololearn.com/discuss/476426/?ref=app

Answer 3

Mozilla development network

Answer 4

this thread can help : https://www.sololearn.com/Discuss/204501/?ref=app

Answer 5

w3schools.com even when it's not a book