.custom-select-tooltip {
    position: fixed;
    z-index: 999999;
    background: #333;
    color: #fff;
    padding: 6px 11px;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    line-height: 1.5;
    direction: rtl;
    white-space: nowrap;
    pointer-events: none;

    opacity: 0;
    visibility: hidden;

    transition: opacity 0.12s ease;
}

.custom-select-tooltip.show {
    opacity: 1;
    visibility: visible;
}