body {
color: #000;
background: url(https://i.loli.net/2021/07/19/CJlFDVqX5Ai3MhZ.jpg
) fixed;
background-size: 100%;
background-repeat: no-repeat;
font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
min-height: 101%;
}