#coverActivityIndicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding-top: 200px;
  background-color: rgba(150, 150, 150, 0.5);
  z-index: 10000;
}

#activityIndicatorContainer {
  width: 140px;
  margin-left: auto;
  margin-right: auto;
}

#activityIndicatorContainer > img {
  animation: activityIndicatorRotation 1600ms linear 0s infinite;
}

@keyframes activityIndicatorRotation {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}