.hint-wrap {
    display: inline-block;
    position: relative;
    font-size: 18px;
}

.hint {
    position: absolute;
    width: 700px;
    background-color: rgba(255, 255, 255, 0.99);
    border: 1px solid black;
    border-radius: 4px;
    z-index: 100;
    padding: 3px 10px 10px 10px;
    top: -20px;
    left: 40px;
    font-size: 16px;
}