#tooltip {
    background: #333;
    color: white;
    /* font-weight: bold; */
    padding: 4px 8px;
    font-size: 13px;
    border-radius: 4px;
    display: none;
    z-index: 999;
}

#tooltip[data-show] {
    display: block;
}

#arrow,
#arrow::before {
    position: absolute;
    width: 8px;
    height: 8px;
    background: inherit;
}

#arrow {
    visibility: hidden;
}

#arrow::before {
    visibility: visible;
    content: '';
    transform: rotate(45deg);
}

#tooltip[data-popper-placement^='top'] > #arrow {
    bottom: -4px;
}

#tooltip[data-popper-placement^='bottom'] > #arrow {
    top: -4px;
}

#tooltip[data-popper-placement^='left'] > #arrow {
    right: -4px;
}

#tooltip[data-popper-placement^='right'] > #arrow {
    left: -4px;
}