No media queries detected on product landing page

Tell us what’s happening:

Responsive Web Design Projects - Build a Product Landing Page

I do have a media query on the page but the test fails to find it.

Your code so far

Your browser information:
Google Chrome: Version 87.0.4280.141 (Official Build) (64-bit)

Challenge: Build a Product Landing Page

Link to the challenge:

I have just solved it.
The media query must refer to css rules that already have been defined beforehand.