I simple bootstrap based model which is working fine for confirmation task

model.html

        <div class="modal fade" id="exitModal{{ vehicle.id }}" tabindex="-1" role="dialog" aria-labelledby="exitModalLabel{{ vehicle.id }}" aria-hidden="true">
                    <div class="modal-dialog" role="document">
                        <div class="modal-content">
                            <div class="modal-header">
                                <h5 class="modal-title" id="exitModalLabel{{ vehicle.id }}">Exit Vehicle {{ vehicle.vehicle.registration_number }}</h5>
                                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                                    <span aria-hidden="true">&times;</span>
                                </button>
                            </div>
                            <div class="modal-body">
                                Are you sure you want to exit the vehicle {{ vehicle.vehicle.registration_number }}?
                            </div>
                            <div class="modal-footer">
                                <form action="{% url 'exit_vehicle' %}" method="post">
                                    {% csrf_token %}
                                    <input type="hidden" name="registration_number" value="{{ vehicle.vehicle.registration_number }}">
                                    <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
                                    <button type="submit" class="btn btn-danger">Exit</button>
                                </form>
                            </div>
                        </div>
                    </div>
                </div>