#sb_multiple_booking_btn {
    background-color: transparent !important;   /* no fill */
    color: #D22080 !important;                  /* pink text */
    border: 2px solid #D22080 !important;       /* pink border */
    border-radius: 6px;
    padding: 10px 18px;
    font-weight: 600;
    transition: all 0.2s ease;
}

#sb_multiple_booking_btn:hover {
    background-color: #D22080 !important;   /* fill with pink on hover */
    color: #ffffff !important;              /* switch to white text */
}