With DIVI by Elegant Themes, you can use custom CSS to customize the appearance and layout of your DIVI site.

To add custom CSS to your DIVI site, you can do the following:

Go to the DIVI theme options page in your WordPress dashboard and click on the "Custom CSS" tab.

Add your custom CSS code to the text area provided.

Click the "Save Changes" button to apply your changes.

Alternatively, you can also add custom CSS to your DIVI site by creating a child theme and adding your custom CSS to the child theme's style.css file. This is a good practice because it allows you to make customizations to your site without modifying the parent theme's files, which makes it easier to update the parent theme in the future.

If you need help with customizing your DIVI site, you can refer to the DIVI documentation or seek help from the DIVI community.