#home {
margin: 0 auto;
opacity: 0.8;
width: 75%;
min-width: 1080px;
background-color: #fff;
padding: 30px;
margin-top: 20px;
margin-bottom: 50px;
box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}


body {
    color: #000;
    background: url(https://images.cnblogs.com/cnblogs_com/wzzhu/1688971/o_200403144740IMG_7795.JPG)fixed;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 16px;
    min-height: 101%;
}