Add Custom Code

Add code for customization and shortcode

Add Custom CSS Code

Select 「Theme Options」from 「Divi」of left panel.

Drag the page to the bottom and add the code into the 「Custom CSS」section.

Add Custom PHP Code

Select 「Theme Editor」from 「Appearance」of Left panel

Select 「functions.php」from right side file list, and add custom PHP code into the editor section.