You can create a new custom format or copy an existing one.
To create a style format, perform the following actions:
Click Add a format.
In the Create a new format dialog box, enter the Format name by using only alphanumeric characters (a-z and 0-9) and spaces.
The name cannot begin with a number. The format name that you enter is converted into the name CSS class or classes.
Provide a Usage annotation.
To create a style format by copying an existing format, click Actions and select Save as from the list.