/* Tooltip container */
.tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 0px dotted black; /* If you want dots under the hoverable text */
}

/* Tooltip text */
.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: lightgray;
    color: #fff;
    text-align: center;
    padding: 5px;
    border-radius: 6px;

    /* Position the tooltip text */
    position: relative;
    z-index: 1;
    bottom: 125%;
    left: 5%;
    margin-left: 5px;
    margin-top: -5px;

    /* Fade in tooltip */
    opacity: 0;
    transition: opacity 1s;
}

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