This example demonstrates how to turn links into "buttons" and lists of links into "nav bars.""
The bulk of the explanation for this example is in the source code.
Button Link - a link turned into a box-like structure where the whole thing is clickable.
Chicago Cubs Page
Vertical Nav Bar - a list of links with the list bullets hidden and the links made into clickable blocks inside the list items.
Horizontal Nav Bar - same idea as the vertical nav bar, but the list items are floated side by side so it's not vertical.