Posted by Alan-Parry on

Hi Efor

The black box with lines in it is called a hamburger and replaces the menu bar on devices that can not accommodate the menu bar.  What was in the menu bar is shown as a drop down form from the hamburger.  The best illustration is if you have an iPad in landscape it will show the menu bar in the usual place, but if you turn the iPad or tablet into portrait mode you get the hamburger and vice verse.