data/train/codepen-ABKVZX-nzzjqw/full.html

<!DOCTYPE html>
<html>
<head>
  <style>body {
  background-color:#111;
}

.loader-xbox {
  position: absolute;
  top: calc(50% - 25px);
  left: calc(50% - 25px);
}

.loader-xbox, .loader-xbox:before, .loader-xbox:after {
  position: absolute;
  border: 3px solid transparent;
  border-top: 3px solid hsl(83, 82%, 53%);
  border-radius: 50%;
  animation: rotate linear infinite;
  content: '';
}

.loader-xbox {
  height: 100px;
  width: 100px;
  animation-duration: 1.05s;
}

.loader-xbox:before {
  height: 75px;
  width: 75px;
  top: 10px;
  left: 10px;
  animation-duration: 10s;
}

.loader-xbox:after {
  height: 50px;
  width: 50px;
  top: 22px;
  left: 22px;
  animation-duration: 4s;
}

@keyframes rotate {
  from {
    transform: rotateZ(360deg);
  }
  to {
    transform: rotateZ(0deg);
  }
}</style>
</head>
<body>
  <div class="loader-xbox"></div>
  <script></script>
</body>
</html>