In Bootstrap 5, you can center a modal vertically by adding the `modal-dialog-centered` class to the modal dialog. This class ensures the modal is displayed in the center of the screen.
<!-- BEGIN COPY / PASTE -->
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
</div>
<div class="modal-body">
Modal body content goes here.
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<!-- END COPY / PASTE -->
Additional Comment:- Use the `modal-dialog-centered` class inside the `modal-dialog` to center the modal vertically.
- Ensure that the modal is triggered using JavaScript or data attributes for it to display correctly.
- This approach works for both small and large screens.
✅ Answered with Bootstrap 5 best practices.