*{ box-sizing: border-box; }

#canvas{
  background-color: rgb(220, 220, 203);
  width: 60vmin;
  height: 80vmin;
  margin: 20vmin auto 0 auto;
  position: relative;
  border: solid 2.5px rgb(22, 22, 22);
}

#se{
  position: absolute;
  left: 0vmin;
  top:  0vmin;
  width:  25vmin;
  height: 79.4vmin;
  background-color: rgb(42,43,44 );
}
#th{
  position: absolute;
  left:11.5vmin;
  top:  10.2vmin;
  width:  6.5vmin;
  height:  43.5vmin;
  background-color: rgb(211, 209, 203 );
}
#fo{
  position: absolute;
  left: 18vmin;
  top: 44vmin;
  width:  7vmin;
  height:  35.3vmin;
  background-color: rgb(186,186,186 );
}