body {
  background-color: #f8f9fa;
}

#loader {
  color: #f8f9fa;
}

.loader-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

/* loader from https://stogacs.club/leaderboard/manage.html */
/* which is really from https://loading.io/css/ */
.lds-dual-ring {
  display: inline-block;
  width: 80px;
  height: 80px;
}

.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;
}

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

  100% {
    transform: rotate(360deg);
  }
}