html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#gears svg {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60vmin;
  height: 60vmin;
  transform: translate(-50%, -50%) translate(-12%, -12%);
}