Build a Technical Documentation Page scrolling on page

only part of my scrolling is working I can’t see why.

chrome

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36.

Link to the challenge:

Remove both overflow and overflow-y

If i do that i won’t be able to apply it to my page. i need my left column to stay hidden and my main body to scroll. and that is what i coded. but only one section in the body received the code.

https://jsfiddle.net/9ex2cwp8/

I added height to body and overflow to main (not .main-section).

this what I’ve been saying scrolling isn’t working for me. I’ve read about it and this is suppose
to work.

this just awful I need help I can’t move on anybody.