Dropdowns
Single button dropdowns
Any single .btn can be turned into a dropdown
                                    toggle with some markup changes. Here’s how you can put them to work
                                    with either <button>
                                    elements:
Variant
The best part is you can do this with any button variant, too:
Split button dropdowns
The best part is you can do this with any button variant, too:
Sizing
Button dropdowns work with buttons of all sizes, including default and split dropdown buttons.
Dropup variation
Trigger dropdown menus above elements
                                    by adding .dropup to the parent
                                    element.
Menu alignment
Add .dropdown-menu-end
                                    to a .dropdown-menu to right
                                    align the dropdown menu.
Responsive alignment
If you want to use responsive alignment, disable dynamic positioning by adding the data-bs-display="static" attribute and use the responsive variation classes.
Dropright variation
Trigger dropdown menus at the right of the elements by adding .dropend to the parent element.
                                
Dropleft variation
Trigger dropdown menus at the right of the elements by adding .dropstart to the parent element.