.is-loading {
  position: relative;
  pointer-events: none;
  color: transparent !important;
  background: #ddd;

}

.is-loading:before {
  content: '';
  position: absolute;
  display: inline-block;
  width: 12px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid transparent;
}

.is-loading:after {
  content: '';
  position: absolute;
  display: inline-block;
  width: 12px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid #fff;
  border-top-color: transparent;
  -webkit-animation: spin 1s linear infinite;
  animation: spin 1s linear infinite;
}

@-webkit-keyframes spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg)
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg)
  }
}

@keyframes spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg)
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg)
  }
}