body {
  background-image: url("https://image2url.com/r2/default/images/1772291282937-4fe52856-31c8-4ac8-911c-dd819ccb4a5b.jpg");
  background-color: white;
  color: white;
  font-family: Verdana;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
}
.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
.div1 {
  width: auto;
  height: auto;
  border: 0px solid blue;
  background-color: #000000;
  background-image: url("https://files.catbox.moe/81fz5t.gif");
}