Horizontal navigation bars If the <nav> tag is used to create a navigation bar, it will appear as an unordered list, like this: Code for the above navigation bar: ...

By default, the navigation bar stops rendering after the last link displays. You can use the CSS "height" property to force the navigation bar to extend to the bottom of the page.

How to Get the Navigation Bar Under the Header in CSS. When you're coding a new website layout, it sometimes can be tricky to get the different elements in the exact positions you want.