The navbar can be used in different forms, all using the same css reference. Some forms require (very little) javascript.
basic: The dropdown is realized by hovering over the menu. In this example the navbar is not fixed
fixed position: Navbar with fixed position and 'hover' dropdown.
click down: Navbar with fixed position and the dropdown is realized by clicking on the parent menu item.
multipart: Navbar with fixed position and 'click' dropdown. This navbar has three sections, a left menu and a right menu, where both work the same way. In the middle there's a part where information can be shown to the user.
sidebar: A sidebar based on the same same css and js of nav.css. Instead of the <nav> tag, the sidebar is wrapped inside a <ul> element. The remaining structure is the same.
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