*,
::before,
::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #222;
}


.container {
  width: 200px;
  height: 200px;
  perspective: 1000px;
  margin: 100px auto 0;
}

.cube {
  transform-style: preserve-3d;
  width: 100%;
  height: 100%;
  position: relative;
  animation: spin 5s infinite linear;
}
.face {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: repeating-linear-gradient(0deg, rgba(70,70,70, 0.2) 0px, rgba(70,70,70, 0.2) 1px,transparent 1px, transparent 21px),repeating-linear-gradient(90deg, rgba(70,70,70, 0.2) 0px, rgba(70,70,70, 0.2) 1px,transparent 1px, transparent 21px),linear-gradient(90deg, rgb(235, 30, 30),rgb(226, 23, 23));
}

.top {
  transform: rotateX(90deg) translateZ(100px);
}
.bottom {
  transform: rotateX(-90deg) translateZ(100px);
}

.right {
  transform: rotateY(90deg) translateZ(100px);
}
.left {
  transform: rotateY(-90deg) translateZ(100px);
}

.front {
  transform: rotateX(0deg) translateZ(100px);
}
.back {
  transform: rotateX(-180deg) translateZ(100px);
}

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