/*公用*/
body {
    font-size:15px;
    padding:0;
    margin:0;
    font-family:"正楷","正楷",Courier New;
    background:
url(https://i.loli.net/2017/08/13/599048d3e86a7.jpg) no-repeat top center fixed;
    min-width:800px;
}
#home {
    opacity: 0.70;
    filter: alpha(opacity=95);
    box-shadow:0 0 10px #000;
    margin:40px auto;
    width:1200px;
    background:#fff;
    overflow:auto;
    border:solid 1px #fff;
}