The Code Navigator gives you access to the CSS code applied to a selection in more than just Design View. You can use Code Navigator in Live View, Code View, or even on the tag selector. To access the Code Navigator, just Command-Option-click (PC: Ctrl-Alt-click) on an item and a pop-up window will show you all CSS rules applied to your selection. Click a rule to be taken instantly to the related CSS source code. (Note: In the tag selector, click on a tag and then press Command-Option-N [PC: Ctrl-Alt-N].)