How to make such an effect?

Question

css

Skis do not move, how to make the same effect with a corner cutout in the background

Answer 1

You can also use the pseudo-element with skew

Answer 2

You can use clip-path
you can generate code on this site: https://bennettfeely.com/clippy/

Answer 3

Thank you all for the answers, yesterday I figured out the gradient, I didn’t want to use it at first.