Flexbox Based Responsive Hover Menu

Decreasing View-Port shows In-Line Concertina Sub-Menus

A fairly standard strip bar menu, allowing sub menus to cascade either to the left or right.

Decrease the size of the view port, mouse over the hamburger menu icon Hamburger icon for menu to see the main menu. Hovering over those items having children, indicated by the 'hand-down' icon Hand-Down icon for menu allows sub-menus to concertina in, in-line.

A free standing version of this example is available for download here.