body {
  background-color: black;

  /* leave it to hide the scrollbars */
  overflow: hidden;
}

.loader {
  position: absolute;
  top: calc(50% - 24px);
  left: calc(50% - 24px);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-block;
  border-top: 3px solid #FFF;
  border-right: 3px solid transparent;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
}

@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

canvas {
  position: absolute;
  z-index: 2;
  bottom: 0;
  right: 0;
  width: 100vw !important;
  height: 100vh !important;
  object-position: center;
  object-fit: contain;
}