Mobile Menu does Not show on Landscape Tablet view

I need the css code to set the max. width so that the mobile menu replaces the desktop menu at 1280px.
I tried this:
@media only screen and (max-width: 1280px) {
It does not work with the Leto theme. Please help.
Thank you.

Hello, I don’t think that there is an easy way to change mobile menu breakpoint.

And please note that you won’t be able to hover on touch devices to expand submenus.

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.