Bootstrap 5 Button Groups: Tips for Using Side-by-Side Buttons Effectively

Button Groups in Bootstrap 5 are used to arrange functionally related buttons side by side, solving spacing, alignment, and styling issues in traditional layouts without manual CSS. Core usage is as follows: - **Basic Horizontal Button Group**: Wrap buttons with `.btn-group`, add the `.btn` class and color classes (e.g., `.btn-primary`). Include `role="group"` and `aria-label` for accessibility. - **Size Control**: Apply `.btn-group-sm` (small) or `.btn-group-lg` (large) to the outer container to adjust overall size. - **Vertical Arrangement**: Replace `.btn-group` with `.btn-group-vertical` for buttons to stack vertically. - **Nested Functionality**: Support nested dropdown menus inside `.btn-group`, e.g., combining with the `.dropdown` component. - **Alignment**: Use Flex classes (e.g., `.d-flex justify-content-center`) for centering or right-aligned groups. **Notes**: Use class names correctly, add accessibility attributes, and avoid excessive nesting. Mastery enables efficient construction of clear operation interfaces and improved development efficiency. Key class names: `.btn-group`/`.btn-group-vertical`/`.btn-group-sm`/`.btn-group-lg`.