Documentation:
Simple Heading

Here you can add custom CSS.

Heading

Here you can add custom CSS for the heading.

Subheading

Here you can add custom CSS for the subheading.

Rule

Here you can add custom CSS for the rule.

Border

Here you can add custom CSS for the border.

Other settings here are common to most Divi modules and are not discussed further. For more information on common Divi module settings, please consult the Elegant Themes Documentation.