Repeat step 1 through 3 for each of the individual links in the navigation bar.
You must assign a navigation class style to each <a> tag or link, so its important that you use the tag selector to select each link individually, and then assign the class styles one at a time.
If youre having trouble formatting the link text, make sure that a space (not a return) is between each linked word or words. Also make sure that the space between two links is not itself linked. If it is, carefully select the linked space, clear the Link text box in the Property inspector, and press Enter (Windows) or Return (Macintosh).