body {
  background-color: black;
}
#head {
  display:flex;
  justify-content: space-around;
}
#head img {
  height:5vmin;
}
#box {
  margin:0 auto;
  position: relative;
}
#canvas1 {
  background-color:bisque;
}
#canvas1, #canvas2 {
  width:100%; height:100%;
  position: absolute;
  top:0;
  left:0;
}