.sk-spinner {
    display: none;
  }
.sk-loading {
    position: relative;
  }
.sk-loading:after {
    content: '';
    background-color: rgba(255, 255, 255, 0.7);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
.sk-loading > .sk-spinner {
    display: block;
    position: fixed;
    top: 40%;
    left: 0;
    right: 0;
    z-index: 2000;
  }
  /*
 *  Usage:
 *
 *    <div class="sk-spinner sk-spinner-wave">
 *      <div class="sk-rect1"></div>
 *      <div class="sk-rect2"></div>
 *      <div class="sk-rect3"></div>
 *      <div class="sk-rect4"></div>
 *      <div class="sk-rect5"></div>
 *    </div>
 *
 */
.sk-spinner-wave.sk-spinner {
    margin: 0 auto;
    width: 50px;
    height: 30px;
    text-align: center;
    font-size: 10px;
  }
  .sk-spinner-wave div {
    background-color: #eb212d;
    height: 100%;
    width: 6px;
    display: inline-block;
    -webkit-animation: sk-waveStretchDelay 1.2s infinite ease-in-out;
    animation: sk-waveStretchDelay 1.2s infinite ease-in-out;
  }
  .sk-spinner-wave .sk-rect2 {
    -webkit-animation-delay: -1.1s;
    animation-delay: -1.1s;
  }
  .sk-spinner-wave .sk-rect3 {
    -webkit-animation-delay: -1s;
    animation-delay: -1s;
  }
  .sk-spinner-wave .sk-rect4 {
    -webkit-animation-delay: -0.9s;
    animation-delay: -0.9s;
  }
  .sk-spinner-wave .sk-rect5 {
    -webkit-animation-delay: -0.8s;
    animation-delay: -0.8s;
  }
  @-webkit-keyframes sk-waveStretchDelay {
    0%,
    40%,
    100% {
      -webkit-transform: scaleY(0.4);
      transform: scaleY(0.4);
    }
    20% {
      -webkit-transform: scaleY(1);
      transform: scaleY(1);
    }
  }
  @keyframes sk-waveStretchDelay {
    0%,
    40%,
    100% {
      -webkit-transform: scaleY(0.4);
      transform: scaleY(0.4);
    }
    20% {
      -webkit-transform: scaleY(1);
      transform: scaleY(1);
    }
  }