Sticky menu on top?

Hi there guys, first of all I wanted to thank you for your job. Arba is one of the most BEAUTIFUL themes out there. Amazing. Still can’t be happier with it.

Although customization gets tricky if use some widespread plugins and tools (e.g. was trying to build pages with elementor and the layout was screwed on the mobile version although dt was looking ok). But overall so so happy.

My only request – is there any way to make main menu sticky both on dt and mobile?

Plugins that supposed to make it happen don’t work but maybe theres a simple line of code that can solve it?

Thank you in advance and have a wonderful day!