https://codepen.io/samdbeckham/pen/OPXPNp

Код:
<div class="parallax" id="parallax">
 
	<div class="parallax__layer parallax__layer--deep" style="text-align:center;height:500px;background-image:url(http://i.imgur.com/oA6LjwV.png);background-repeat:no-repeat;background-position:bottom center;"></div>
 
	<div class="parallax__layer parallax__layer--back" style="text-align:center;height:500px;vertical-align:bottom;background-position:bottom center;background-image:url(http://i.imgur.com/1wWfHa2.png);background-repeat:no-repeat;background-position:bottom center;">
 
	</div>
 
	<div class="parallax__layer parallax__layer--base" style="background-image:url(http://i.imgur.com/zfNiiUk.png);
background-repeat:no-repeat;background-position:bottom center;
width:1240px;padding:0;">
 
</div></div>
Код:
/***********************************
Parallax
************************************/
 
.parallax  {
position:relative;
height: 100vh;
  perspective: 1px;
  overflow-x: hidden;
  overflow-y: auto;
}
.parallax__layer {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  transform-origin: center;
}
.parallax__layer--base {
  transform: translateZ(0);
}
.parallax__layer--back {
  height:1052px;
  transform: translateZ(-1px) scale(2);
}
.parallax__layer--deep {
  transform: translateZ(-2px) scale(3);
}