body {
  margin: 0;
  min-height: 100vh;
  /* Rainbow gradient */
  background: linear-gradient(
    270deg,
    red,
    orange,
    yellow,
    green,
    cyan,
    blue,
    indigo,
    violet,
    red
  );
  background-size: 1800% 1800%;
  animation: rainbow 40s ease infinite;
}

img {
    padding-top: 10px;
}

@keyframes rainbow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}