body {
    font-size:15px;
    padding:15px;
    margin:15px;
    font-family: Ubuntu, 'Comic Sans MS',"微软雅黑","宋体",Arial;
    background:#205424 url('https://images.cnblogs.com/cnblogs_com/Yuhuger/1202289/o_2009091216440427fe8f09d01737b38d46a7f88a6b87.jpg') no-repeat top center fixed;
    background-size:cover;
    min-width:1200px;
}


#home {
    opacity: 0.87;
    filter: alpha(opacity=87);
    box-shadow:0 0 10px #000;
    margin:40px auto;
    width:1250px;
    overflow:auto;
    background:#fff;
    border:solid 1px #fff;
}