body {
  background-color: rgb(255, 255, 255);

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

  margin: 0;
  display: flex;

  /* This centers our sketch horizontally. */
  justify-content: center;

  /* This centers our sketch vertically. */
  align-items: center;
}

canvas{

  aspect-ratio: auto 1200 / 2000;
  width:100%;
  height:100%;
}
#loader {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  width: 100px;
  height: 100px;
  margin: -76px 0 0 -76px;
  border: 8px solid #f3f3f3;
  border-radius: 50%;
  border-top: 8px solid #000000;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
}

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

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