The FloatingActionButton can acquire two distinct modes of operation: button-only and button-with-menu:


 - In the button-only mode, the FloatingActionLabel must implement the specification for the Button component.
 - In the button-with-menu mode, the FloatingActionButton must implement the specification for the DropDownButton component.

## Resources

[WAI-ARIA Authoring Practices: Navigation Menu Button](https://www.w3.org/WAI/ARIA/apg/patterns/menu-button/examples/menu-button-links/)