body {background-color: dimgrey;}
#canvas{
  background-color: rgb(70,99,173);
  width: 70vmin;
  height: 80vmin;
  margin: 10vmin auto 0 auto;
  position: relative;
}

#green{
  position:absolute;
  right:25vmin;
  top:30vmin;
  width:45vmin;
  height:50vmin;
  background-color: rgb(87,134,68);
  
}

#red{
  position:absolute;
  right:45vmin;
  top:50vmin;
  width:25vmin;
  height:30vmin;
  background-color: rgb(175,85,65);
}