How to crop website header without using clip-path?

Question

css

Good afternoon. Please tell me how to crop the site header as in the screenshot:

Without using clip-path and preferably without pseudo-elements, because maybe the next section comes with a picture

Answer 1

border-radius: 0 0 50% 50%;
https://codepen.io/AndrewHaze/pen/VPmRJB

Answer 2

here you can see, I suffered for a long time, but it seems to work :)