Gradient on body without custom code

Hello,

Thanks to the following topic (Why is background body gradient being repeated in sections?) I’ve been able to implement a gradient on the body of the following currently live page (Testing gradient body) that starts black at the top and ends white at the bottom.

I just want to know why this had to require custom code. As you’ll be able to see in the read-only (Webflow - Coffee House Akwa Douala) at the page “Testing gradient body,” the body’s gradient keeps repeating otherwise, even though “Repeat” is not toggled.