#modal-overlay{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);

    display: none;
    align-items: center;
    justify-content: center;

    z-index: 100;
}

#modal-content{
    background: #fff;
    padding: 20px 30px;
    border-radius: 8px;
    max-width: 500px;
    font-family: sans-serif;
}

#modal-close{
    display: block;
    margin: 20px auto 0;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}