Menu Cuts Offf

Hi there,

I’m new to building websites, and I can’t seem to figure out how to keep the menus from cutting off on the right hand side of my screen when you open the drop downs. It only happens on some screens and browsers. I don’t know code at all, so I’m not sure what to do. Any help is greatly appreciated, especially in non-programmer language so I can follow along.

Thanks,
Heather