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

body {
  padding: 70px 20px 20px;
  background: linear-gradient(-45deg, #cec041, #c55836d2, #22a5d4, #21d1a8);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}

h1,
h2 {
  text-align: center;
  color: white;
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

img {
  display: block;
  margin: 30px auto;
}