The 'swing' menu

The menu appears as a side menu on wide screens, changing to a top menu on phone-size screens. There are no dropdowns, but they can be made. This menu, as it is now, is best suited for not too many menu items, but also that can be changed.
To save it as a component, select the 'menu-holder' container. The parent container, 'wrapper' also contains the rest of this page.