Fluid Web Deployment allows for two types of navigation controls or sublayouts right out-of-the-box. The default navigation sublayout is what is referred to as Basic Site Navigation. This sublayout gives a simple hierarchical representation of the site structure with standard popup menus when top level items are hovered over. The other navigation sublayout is the Responsive Mega Menu Navigation sublayout. This sublayout displays the top level site items as any other navigation control would, but when these top level items are hovered over, custom Rich HTML menus can be displayed with virtually any type of HTML content inside of them.