body {
    background-image: url(../../img/bg-img/2.jpg);
    /* background-size: cover;
    background-position: center center; */
    background-attachment: fixed;
}

#ui {
    background-color: #333;
    padding: 30px;
    margin-top: 50px;
    border-radius: 10px;
    opacity: 0.9;
}

#ui h1,
label {
    color: #fff;
}