.hover-tooltip {
    position: relative;
    display: inline-block;
}

.hover-tooltip-text {
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%);
    background: #111;
    color: #fff;
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease;
    pointer-events: none;
    z-index: 1000;
}

    .hover-tooltip-text::after {
        content: "";
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        border-width: 6px;
        border-style: solid;
        border-color: #111 transparent transparent transparent;
    }

.hover-tooltip:hover .hover-tooltip-text {
    opacity: 1;
    visibility: visible;
}