/* Tooltip container */
    .tooltip1 {
        margin-top: 2px;
        width: 80%;
        position: relative;
        display: inline-block;
    }

    /* Tooltip text */
    .tooltip1 .tooltiptext1 {
        visibility: hidden;
        width: 100%;
        background-color: #555;
        color: #fff;
        text-align: center;
        padding: 10px 0;
        border-radius: 6px;

        /* Position the tooltip text */
        position: absolute;
        z-index: 1;
        bottom: 125%;
        left: 50%;
        margin-left: -50%;

        /* Fade in tooltip */
        opacity: 0;
        transition: opacity 0.3s;
    }

    /* Tooltip arrow */
    .tooltip1 .tooltiptext1::after {
        content: "";
        position: absolute;
        top: 100%;
        left: 50%;
        margin-left: -5px;
        border-width: 5px;
        border-style: solid;
        border-color: #555 transparent transparent transparent;
    }

    /* Show the tooltip text when you mouse over the tooltip container */
    .tooltip1:hover .tooltiptext1 {
        visibility: visible;
        opacity: 1;
    }