.container {
  display: auto;
  justify-content: center;
  margin: 0;
}

.loader {
  display: grid;
  grid-template-columns: repeat(2, 50px);
  grid-template-rows: repeat(2, 50px);
  gap: 30px;
  perspective: 1000px;
}

.cube {
  width: 60px;
  height: 60px;
  background-color: #ffc01d;
  position: relative;
  border-radius: 5px;
  transform-style: preserve-3d;
  animation: rotate 1.8s cubic-bezier(0.68, -0.55, 0.27, 1.55) infinite;
}

@keyframes rotate {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }
  100% {
    transform: rotateX(360deg) rotateY(360deg);
  }
}

.cube:nth-child(1) {
  animation-delay: 0s;
}
.cube:nth-child(2) {
  animation-delay: 0.2s;
}
.cube:nth-child(3) {
  animation-delay: 0.4s;
}
.cube:nth-child(4) {
  animation-delay: 0.6s;
}