Help Product Landing page

I am trying to finish the Product landing page and it passes all the tests but I find the site is not responsive to different sizes.

What are the hints that I can do to make this responsive?

Codepen

Your page passes all the test when I try it.
16/16
Congratulations

Please explain the problem more, What behavior are you expecting from it? I see in your code that your are using media queries for different screen sizes & the site is responsive… you just need to adjust the layout more when the screen gets smaller.
By the way images are not loading.

You need to work the size when the screen is small, so that’s how you write your media queries. That is, you use the web inspector and the design mode at the same time to see the spaces that the boxes occupy.