body {
color: #000;
background: url(https://images.cnblogs.com/cnblogs_com/blogs/779281/galleries/2257668/o_221225075310_QQ%E5%9B%BE%E7%89%8720220414120354.jpg
) fixed;
background-size: 100%;
background-repeat: no-repeat;
font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
font-size: 12px;
min-height: 101%;
}
#home { opacity: 0.80;}