Many of the examples below include icons from Font Awesome.
Responsive Navigation Bar
Vertical Responsive Navigation Bar
Flexible Navigation
The Flexible Navigation element is meant for in-content navigation. It is displayed as a horizontal bar on desktop sites, and a vertical list on tablet & mobile.
Vertical Navigation
Use the vertical navigation menu if you have too many items in your main navigation to display them horizontally, or you have a section navigation.
Breadcrumbs
You can use a combination of other classes to style the breadcrumb navigation: