The "Icon, Header, Text, Button"-element is often used on the start page as promo boxes. The element is found below the tab "Mallar" when creating a new element (img 15.2.1).
NOTE! These elements are implemented in newer installations of TYPO3 (Pixelant Core), and might not be available for older versions.
The element uses the regular header field (1) and a text field (2), which is a plain text field, and it is not possible to format this text with row breaks, linked text or any type of text transformation (img 15.2.2).
Moving on, you can see the fluid content type that is selected (3), and you can add an icon connected to the (4). If you have specific preferences for icons, please advice you project manager or support (img 15.2.3).
Finally you can add a link target (5) and a text for the link button (6) (img 15.2.4).
Here is what the element looks like in the frontend. Of course it can differ a bit between the designs of the websites (img 15.2.5).