body {
    background: url('https://images.cnblogs.com/cnblogs_com/chinhhh/1283343/o_asdf.jpg') fixed no-repeat;
        background-position-x: 0%;
        background-position-y: 0%;
        background-repeat: no-repeat;
        background-size: auto;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

#home {
margin: 0 auto;
opacity: 0.8;
width: 65%;
min-width: 1080px;
background-color: #fff;
padding: 30px;
margin-top: 50px;
margin-bottom: 50px;
box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}