How to add Custom CSS in Block Themes

Block Themes, by their nature, tend to include as little CSS code as possible. That’s mainly because they are controlled by a theme.json file, which includes configuration for every detail of the theme.

If you can’t customize a specific element in your Block Theme, you can add Custom CSS very easily.

1. Go to Site Editor:
   
2. Click on the website preview
3. Click on the Styles icon
4. Click on the three dots icon next to the section title
   
5. Add your CSS code in the Additional CSS area