#canvas{
  background-color: rgb(9, 67,176);
  width: 60vmin;
  height: 62vmin;
  margin: 19vmin auto 0 auto;
  position: relative;
}

#secondring{
  position:absolute;
  left: 10vmin;
  top: 11vmin;
  width: 40vmin;
  height: 41vmin;
  background-color: rgb(9, 67,110)
}

#innerring{
  position:absolute;
  left: 20vmin;
  top: 24vmin;
  width: 20vmin;
  height: 21vmin;
  background-color: rgb(45, 101, 88) 
}