Default specifies the default font for the HTML tag used for the selected text. You can also enter an exact point size, such as 24. Bold and Italic apply the respective style. Left, Center, and Right alignment apply the respective alignment. Type the URL or click the folder icon to browse to and select a page in your site.
Target specifies a frame in which the linked page is loaded.
The names of all of the frames in the current document appear on the list. If the specified frame does not exist, the linked page loads into a new window that has the name you specified. Once this window exists, other files can be targeted to it. If the frame containing the link is not nested, then the linked file loads into the full browser window. This target is implied, so it generally need not be specified.