Wrap a series of Button elements in ButtonGroup element.

Instead of applying button sizing properties to every button in a group, just set variant with sm|lg to each ButtonGroup, including each one when nesting multiple groups.

Create split button dropdowns with virtually the same markup as single button dropdowns, but with the addition of split property for proper spacing around the dropdown caret.

Make a set of buttons appear vertically stacked rather than horizontally

Combine sets of button groups into button toolbars for more complex components. Use utility classes as needed to space out groups, buttons, and more.

Add group property to the dropdown element when you want dropdown menus mixed with a series of buttons.

Do more with buttons. Control button states or create groups of butons for more components like toolbars.