#canvas{
  background-color: rgb(220, 218, 210);
  width: 54vmin;
  height: 70vmin;
  margin: 20vmin auto 0 auto;
  position: relative;
  box-shadow: 0px, 0px, 2px, black;
}

#a{
  position:absolute;
  left: 0vmin;
  top: 0vmin;
  width: 25vmin;
  height: 70vmin;
  background-color: rgb(40, 41, 45);

}

#b{
  position:absolute;
  left: 11vmin;
  top: 10vmin;
  width: 6vmin;
  height: 37vmin;
  background-color: rgb(220, 218, 210);
}

#c{
  position:absolute;
  left: 17vmin;
  top: 35vmin;
  width: 8vmin;
  height: 35vmin;
  background-color: rgb(184, 184, 184);;
}