How to put html code in a page?

Elements
1

How do I insert HTML code into a page in Elements? In the old Rapidweaver I seem to remember an HTML container.

2

Have look here https://www.youtube.com/watch?v=_EGPQV0G2T4&list=PLlqV01jBZsjAYExt2BRxY1g4k_7hBeUUf&index=43&pp=iAQB

3
4

oops wrong link should have been episode 15https://www.youtube.com/watch?v=FeNoKUzd_fg&list=PLlqV01jBZsjAYExt2BRxY1g4k_7hBeUUf&index=85&pp=iAQB