html,body {
  margin: 0;
  position: relative;
  min-height: 100vh;
}
canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  max-width: 100%;
  max-height: 100%;
  object-fit: scale-down;
  filter: drop-shadow(0.3rem 0.3rem 0.3rem rgba(0,0,0,0.43));
  z-index: 100;
}

.loader {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 16px solid #260D0B;
  border-radius: 50%;
  border-top: 16px solid #FFFF;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 1s ease infinite;
  animation: spin 1s ease infinite;
  z-index: 1;
}

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

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