Adobe Illustrator CC Classroom in a Book (2019 Release), First Edition

Click the Export Options button ( ) at the bottom of the CSS Properties panel (circled in the
following figure).
The CSS Export Options dialog box that appears contains export options that you can set, such
as which units to use, which properties to include in the styles, and other options, such as
which Vendor prefixes to include.

Select Generate CSS For Unnamed Objects, and click OK.