.phone-tooltip {
    position:absolute;
    top: 13px;
    cursor: pointer;
}

.phone-tooltip-text {
    display: none;
    width: 300px;
    background-color: grey;
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 10px;

    /* Position the tooltip */
    position: absolute;
    top: 20px;
    right: 82px;
    z-index: 100;
    font-size: 16px;
    line-height: 1.5;
}

.phone-tooltip:hover + .phone-tooltip-text {
    display: block;
}