body {
    color: #000;
    background: #fff;
    font-family: Verdana,Arial,Helvetica,sans-serif;
    font-size: 12px;
    min-height: 101%;
    background: url(https://images.cnblogs.com/cnblogs_com/blogs/820748/galleries/2393779/o_240422035359_body.jpg) top center  #000
}