A simple  menu created with button links and dropdowns. It is based om a menu I found in RBB. It it had to be recreated  for SD3 because the subgrid that was used originally, made the SD3 version go haywire!
This is not a 'hamburger' sort of menu, but if you don't have too many menu items, it will still wrap gracefully.
To make it into a component, select the container .menu-wrapper.