ceholder="-- Chọn Xã/Phường/Thị trấn --"
                                    readonly
                                    disabled
                                >
                                <button type="button" class="dropdown-clear">
                                    <i class="bi bi-x"></i>
                                </button>
                                <i class="bi bi-chevron-down dropdown-arrow"></i>
                                <div class="dropdown-menu">
               