.falling-leaves, .falling-leaves2, .falling-leaves3 {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;

 left: 0;
 right: 0;

  overflow: hidden;
}


.leaf-scene {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    transform-style: preserve-3d;
 }
.leaf-scene div {
	position: absolute;
	top: 0;
	left: 0;
	width: 20px;
	height: 20px;
	background-size: 100%;
	transform-style: preserve-3d;
	backface-visibility: visible;
	background-image: url(../img/leaves.png);
	background-repeat: no-repeat;
    }