Open the customize menu

Customize shows up at the top of a page when you are logged into WordPress
or as a fly out navigation under “Appearance”

or under Appearance, once it’s open

Select “additional CSS”
‘select “customize” and you get to the customize menu. “Additional CSS” is the last item.

Add your custom css here

Go to the page you are styling and add the custom classes
- Go to the page that you are adding custom classes to
- Select the block to be customized
- Open “advanced” under the block settings
- Add the custom classes
