Selection of certain options under the Common Options section, changes information on the linked fields within the More Options section. These background styling Class Names and CSS Override fields can be used to enter custom CSS styles to fine-tune the look-and-feel of your group.
For example, the "gridColumnsBelowOnPhone" class provides more control over layout for smaller screens. It may be desirable to have two columns of fields (grid) for the wider screens, but have the right hand column drift under the first column when the form is presented on a small mobile phone. If this style is added to a Grid then the right-hand column will be moved under the left column.
Please refer to earlier sections on Control and Label Properties for more information on how to define your own classes and reuse pre-defined helper classes.