body {
  background-image: url("https://reel-and-remote.neocities.org/PC%20_%20Computer%20-%20Deltarune%20-%20Tenna%20-%20TennaTPose.gif");
  background-size: 300px;
  background-position: absolute;
  background-blend-mode: calc(+);
  background-color: #000000;
  overflow-y: scroll;
  cursor: url(https://cur.cursors-4u.net/mechanics/mec-5/mec443.cur), auto;
  font-family: "PixelOperator";
  animation: scrollBg 60s linear infinite;
     }

    @keyframes scrollBg {
      from {
        background-position: 0 0;
      }
      to {
        background-position: 100% 0%;
      }
    }