body {
    text-align: center;
    background-image: url('error.png');
    background-color: black;
    color: #00ff00;
    animation: bgscroll 120s linear infinite;
    
}
p {
  border: 3px solid green;
  background-color: darkgreen;
}
@keyframes bgscroll {
    0% {
        background-position: 50vw 140vh, 50vw 50vh;
    }
}