Running test not functioning properly

Tell us what’s happening:
My code is correct but after I run the test the comment below tells me the color property is not defined as well as font family.

Your code so far

body {
  background-color: black;
  color: green;
  font-family: monospace;

<h1>Hello World</h1>

Your browser information:

User Agent is: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0.

Challenge: Inherit Styles from the Body Element

Link to the challenge:

Apparently the solution is to just disable some extensions especially, dark mode add-on if you run on Mozilla browser.