#canvas{
  background-color: rgb(189, 97, 44);
  width: 50vmin;
  height: 90vmin;
  margin: 19vmin auto 0 auto;
  position: relative;

}

#secondring{
  position:absolute;
  left: 0vmin;
  top: 19.45vmin;
  width: 50vmin;
  height: 52vmin;
  background-color: rgb(191, 98, 97)

}

#thirdring{
  position:absolute;
  left: 16.5vmin;
  top: 10.3vmin;
  width: 17vmin;
  height: 70vmin;
  background-color: rgb(183, 62, 36)

}

#fourthring{
  position:absolute;
  left: 7.7vmin;
  top: 36vmin;
  width: 34vmin;
  height: 18vmin;
  background-color: rgb(189, 97, 44)
}