body, html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}
canvas, input {
  opacity: 0;
  position: absolute;
}
img, div {
  position: absolute;
  width: 100%;
  height: 100%;
}
div {
  height: 33%;
  bottom: 0;
}