/*body {
    color: #000;
    background: url(https://www.cnblogs.com/images/cnblogs_com/xhq1024/1436485/o_%e9%a3%9e%e5%b1%8b%e7%8e%af%e6%b8%b8%e8%ae%b0.jpg) fixed;
    background-size: cover;
    background-repeat: repeat;
    font-family: "微软雅黑","Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 12px;
    min-height: 101%;
}*/
#home {
    margin: 0 auto;
    width: 85%;
    background-color: #fff;
    padding: 30px;
    margin-top: 50px;
    margin-bottom: 50px;
    box-shadow: 0 0 10px #000;
    opacity: 0.77;/* 透明度 */
    border-radius: 20px;
}