The Bootstrap Navigation Bar extension implements a multi-level, responsive navigation bar optimized for desktop computers and mobile (touch) devices. The menu will display a standard drop-down menu and on mobile devices, it will display a multi-level stacked menu with the familiar ‘hamburger’ icon. The menu is inspired by the Bootstrap navbar component. Unlike most other drop-down menus, this menu requires a click to open the sub menus instead of mouseover. This makes the menu work the same way on desktops and touch devices.