HTML

<div class="atomloader">
    <div class="atomloader__ring">
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    </div>
    <div class="atomloader__ring">
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    </div>
  </div>


CSS



  /* Animation */
  @-webkit-keyframes rotate {
    to {
      -webkit-transform: rotate(360deg);
              transform: rotate(360deg);
    }
  }
  @keyframes rotate {
    to {
      -webkit-transform: rotate(360deg);
              transform: rotate(360deg);
    }
  }
  /* Variables */
  /* Loading Icon */
  .atomloader {
    width: 100px;
    height: 100px;
  }
  .atomloader__ring {
    position: absolute;
    width: 100px;
    height: 100px;
  }
  .atomloader__ring:first-child {
    -webkit-transform: skew(30deg, 20deg);
            transform: skew(30deg, 20deg);
  }
  .atomloader__ring:last-child {
    -webkit-transform: skew(-30deg, -20deg) scale(-1, 1);
            transform: skew(-30deg, -20deg) scale(-1, 1);
  }
  .atomloader__ring:last-child svg {
    -webkit-animation-delay: -0.5s;
            animation-delay: -0.5s;
  }
  .atomloader__ring svg {
    -webkit-animation: rotate 1s linear infinite;
            animation: rotate 1s linear infinite;
    fill: rgba(0, 0, 0, 0.2);
  }