.preloader {
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;

  display: flex;
  flex-flow: row nowrap;
  justify-content: center;
  align-items: center;

  background-color: rgba(26, 27, 29, 0.90);

  z-index: 5;
}

.spinner {
  width: 80px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 8px solid #0000;
  border-right-color: rgba(3, 200, 83, .5);
  position: relative;
  animation: spin 1s infinite linear;
}

.spinner:before,
.spinner:after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: inherit;
  animation: inherit;
  animation-duration: 5s;
}

.spinner:after {
  animation-duration: 10s;
}

@keyframes spin {
  100% {
    transform: rotate(1turn)
  }
}