/* Force le champ select natif à rester caché */
.multiselect-ajax-container select[data-multiselect-ajax-target="hiddenField"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    pointer-events: none !important;
}