*{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html,
body {
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background-color: #e8e8e8;
  font-family:arial;
}
.spinner {
 width: 44px;
 height: 44px;
 animation: spinner-y0fdc1 2s infinite ease;
 transform-style: preserve-3d;
}

.spinner > div {
 background-color: rgba(0,77,255,0.2);
 height: 100%;
 position: absolute;
 width: 100%;
 border: 2px solid #004dff;
}

.spinner div:nth-of-type(1) {
 transform: translateZ(-22px) rotateY(180deg);
}

.spinner div:nth-of-type(2) {
 transform: rotateY(-270deg) translateX(50%);
 transform-origin: top right;
}

.spinner div:nth-of-type(3) {
 transform: rotateY(270deg) translateX(-50%);
 transform-origin: center left;
}

.spinner div:nth-of-type(4) {
 transform: rotateX(90deg) translateY(-50%);
 transform-origin: top center;
}

.spinner div:nth-of-type(5) {
 transform: rotateX(-90deg) translateY(50%);
 transform-origin: bottom center;
}

.spinner div:nth-of-type(6) {
 transform: translateZ(22px);
}

@keyframes spinner-y0fdc1 {
 0% {
  transform: rotate(45deg) rotateX(-25deg) rotateY(25deg);
 }

 50% {
  transform: rotate(45deg) rotateX(-385deg) rotateY(25deg);
 }

 100% {
  transform: rotate(45deg) rotateX(-385deg) rotateY(385deg);
 }
}