A simple button group can be created by adding the .btn-group class around several buttons. This keeps the buttons aligned together in a group.

Use the .active class to highlight a button link that is currently active. It visually indicates which link/button the user is interacting with.

You can create button groups with different button styles by mixing classes like .btn-danger, .btn-warning, and .btn-success. This allows you to create button groups with different colors.

Use the .btn-outline class along with other button classes (like .btn-outline-primary) to create buttons with borders but no solid background color.

Checkbox-style buttons can be created by using .btn-check for the input and .btn for the label. These buttons toggle between checked and unchecked states.

Radio-style buttons are created in a similar way to checkboxes, but the radio buttons allow only one selection at a time. Use the .btn-check class for the radio inputs and .btn for the labels.

A button toolbar allows you to group multiple button groups together, giving you more flexibility in arranging buttons on your page. Use the .btn-toolbar class to organize button groups.

You can nest dropdowns inside button groups. This allows you to add more interactive components to your buttons, such as a dropdown menu.

You can adjust the size of your buttons using classes like .btn-group-lg for large buttons, .btn-group for default size, and .btn-group-sm for small buttons.

A vertical button group stacks buttons on top of each other. Use the .btn-group-vertical class to create this layout.