Content blocks allow you to display categories, sections and/or articles in a variety of different styles. Like custom blocks and contact blocks, various aspects of the blocks are configurable through theme settings. For example, you can change the number of columns, color palette and image size.
Presenting categories in blocks or cards is a popular choice, particularly on the Home page.
Lists and list groups
Tabs and toggles
By default content blocks are displayed on the Home page, however you can use them anywhere in the help center.