.lds-dual-ring {
    display: none;
    width: 80px;
    height: 80px;
    margin: auto;
  }
  .lds-dual-ring:after {
    content: " ";
    display: block;
    width: 64px;
    height: 64px;
    margin: 8px;
    border-radius: 50%;
    border: 6px solid #fff;
    border-color: #fff transparent #fff transparent;
    animation: lds-dual-ring 1.2s linear infinite;
  }

  .lds-dual-ring-default {
    width: 80px;
    height: 80px;
    margin: auto;
  }
  .lds-dual-ring-default:after {
    content: " ";
    display: block;
    width: 64px;
    height: 64px;
    margin: 8px;
    border-radius: 50%;
    border: 6px solid #545454;
    border-color: #545454 transparent #545454 transparent;
    animation: lds-dual-ring-default 1.2s linear infinite;
  }

  @keyframes lds-dual-ring {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }

  @keyframes lds-dual-ring-default {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }