why is my Css glitching and not changing anything on the code

Question

Example: body{background-color:blue;} changes nothing

Answer 1

Airhead

Just remove body tag from CSS and write it again

https://code.sololearn.com/W97KF9OlES5m/?ref=app

Answer 2

Working fine

Show your full code.

Answer 3

https://code.sololearn.com/W0DtH9Y7K1L6/?ref=app

its not finished so the javascript doesnt work but the css is the problem rn