body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #26de81;
  perspective: 200px;
}

.loading {
  width: 100px;
  height: 100px;
  background-color: white;
  border-radius: 12px;
  animation: loading 2s linear infinite;
}

@keyframes loading {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }

  50% {
    transform: rotateX(0deg) rotateY(180deg);
  }

  100% {
    transform: rotateX(180deg) rotateY(180deg);
  }
}