Linear gradients

Question

Why is my linear gradient not going all the way through my container?
https://code.sololearn.com/W5935ELLGUeI/?ref=app

Answer 1

I don't know how to explain, but it seems line 16 in CSS section
background: fixed;
Was the one responsible for the problem.
Tried to read this page trying to understand, but couldn't relate ...
https://developer.mozilla.org/en-US/docs/Web/CSS/background-attachment