#canvas{
  background-color: rgb(216, 214, 209);
  width: 55vmin;
  height: 77vmin;
  margin: 19vmin auto 0 auto;
  position: relative;

}

#secondring{
  position:absolute;
  left: 0vmin;
  top: 0vmin;
  width: 23vmin;
  height: 77vmin;
  background-color: rgb(42, 41, 50)

}

#thirdring{
  position:absolute;
  left: 10vmin;
  top: 12vmin;
  width: 6vmin;
  height: 40vmin;
  background-color: rgb(216, 214, 209)

}

#fourthring{
  position:absolute;
  left: 16vmin;
  top: 40vmin;
  width: 7vmin;
  height: 37vmin;
  background-color: rgb(187, 187, 185)
}