CSS Tab Menu

From http://www.w3schools.com/css/tryit.asp?filename=trycss_float5p

In the example below, I create an inline menu display. The li elements are displayed as inline elements with no line break before or after each element. This causes the list to be ononly one line. The font size is 14 px and each button in the list has ample padding and a modest margin, which results in a large menu with an airy aspect. I add analogous blue or gray colors for the various link states, and I add outset borders to create the impression that the button surface is slightly above the page surface.