.content-wrapper-xg {
    background-color: #f4f6f9;
}

option {
    position: relative;
}

option:hover::after {
    content: attr(title);
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    padding: 5px 10px;
    border-radius: 5px;
    z-index: 1;
}