body {
   
    color: #7d8b8d;
    font-family: Verdana,Arial,Helvetica,sans-serif;
    font-size: 14px;
    line-height: 25px;
    min-height: 101%;
    background: url(https://images.cnblogs.com/cnblogs_com/yangxiaoli/1803382/o_20071003170820190514173938_zmjtw.jpeg)fixed;
}