#canvas{ 
position:relative;
width: 80vmin;
height:80vmin;
background-color:darkred;
margin: 0 auto}

#col3 {
position: absolute;
width: 40vmin;
height: 40vmin;
background-color: #1e1ebc;
left:0vmin;
}

#col2 {
  position: relative;
  top:0;
  width: 40vmin;
  height: 40vmin;
  background-color: #1e1ebc;
  left:40vmin
}

#col4 {
  position: relative;
  top:0;
  width: 20vmin;
  height: 5vmin;
  background-color: darkred;
  left:10vmin;
  margin-top: 35vmin
}

#col5 {
  position: relative;
  top:0;
  width: 20vmin;
  height: 5vmin;
  background-color: darkred;
  left:50vmin;
  margin-top:-80vmin
}