Made this for a customer project recently, and thought it may be of use for other people, so sharing.

It uses CSS and a little bit of JavaScript (to handle hover clicks on the mobile) to present a traditional multi-layer drop down on the desktop, and a modern slide in from the side menu on the mobile. It is not styled very sophisticatedly, but the basic structure is there, for you to add upon.

Published on 1 April 2017 in Fun With CSS