body {
    background-color: rgb(25,25,25);
   /*  background-image: url("d.gif"); */
    background-repeat: no-repeat;
    background-size: auto;
    background-position: center center;
    margin: 0;
    height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;
}

img {
  animation: spin 60s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}