Adding CSS

Default in Customizer

WordPress has a section that allows you to add CSS, go to Appearance → Customizer → Additional CSS and add the CSS code

For example, adding the code body {border: 20px solid red} will make the website have a red border around it

Plant CSS

The Plant theme also has a section that allows you to add CSS, go to Appearance → Customizer → Extensions → Scripts & Styles, you will see two fields where you can add CSS code

Frontend CSS

Add the CSS code and it will be displayed on the website, just like in Additional CSS above

Backend CSS

Add the CSS code that you want to have an effect on the backend, for example, the code #menu-comments {display:none} will hide the Comments menu in the backend

Note: Backend CSS does not include the Customizer page