How to add or edit a custom class on a Component

Step 1

Login to the CMS.

Step 2

In the tree menu on the left-hand side, go to any page (or add a new page).

Step 3

At the label 'Main content', click on an existing component (or add a new component).

Step 4

In the slide-out panel, go to 'Settings' in the top-right. 

Step 5

At the label 'Custom classes', enter your custom class (or classes — be sure to leave a space between each class).

Click 'Submit' in the bottom right, until you return to the main page node.

Step 6

Hit 'Save and publish'.