Assessment wanted for: Mozilla Splash Page

Hello. Here is my work in Glitch.
https://heavy-weak-pedestrian.glitch.me/

Here is the assessment page.

Hey there @Dot_Dot!

I’ve just looked over your code, and it is working perfectly — well done!

The red fox picture shows the landscape version on a wide screen and the potrait version on a narrow screen.

And looking at the Firefox network monitor, the small pictures are loaded in 400px side on a wide screen, and 120px size on a narrow screen.

Exactly what we are looking for!