The Reference panel provides you with a quick reference tool for markup languages, programming languages, and CSS styles. It provides information on the specific tags, objects, and styles that you are working with in Code view (or the Code inspector). The Reference panel also provides example code that you can paste into your documents.
Right-click (Windows) or Control‑click (Macintosh) a tag, attribute, or keyword, and then select Reference from the context menu.
Place the insertion point in a tag, attribute, or keyword, and then press Shift+F1.
The Reference panel opens and displays information about the tag, attribute, or keyword you clicked.