.viewer360 {
  width: 100%;
  height: 500px;
  cursor: all-scroll;
  background-color: gray;
  position: relative;
}

.viewer360::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotateZ(45deg);
  perspective: 1000px;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  color: #fff;
  box-shadow: .2em 0px 0 0px currentcolor;
  animation: spin 1s linear infinite;
  z-index: 1;
}

.viewer360::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotateZ(45deg) rotateY(70deg);
  perspective: 1000px;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  color: #FF3D00;
  box-shadow: .2em 0px 0 0px currentcolor;
  animation: spin 1s linear infinite .4s;
  z-index: 1;
}

.viewer360 canvas {
  position: relative;
  z-index: 2;
}

@keyframes spin {
  0%,
  100% {
    box-shadow: .2em 0px 0 0px currentcolor;
  }
  12% {
    box-shadow: .2em .2em 0 0 currentcolor;
  }
  25% {
    box-shadow: 0 .2em 0 0px currentcolor;
  }
  37% {
    box-shadow: -.2em .2em 0 0 currentcolor;
  }
  50% {
    box-shadow: -.2em 0 0 0 currentcolor;
  }
  62% {
    box-shadow: -.2em -.2em 0 0 currentcolor;
  }
  75% {
    box-shadow: 0px -.2em 0 0 currentcolor;
  }
  87% {
    box-shadow: .2em -.2em 0 0 currentcolor;
  }
}