<p>Click on the image to see the transition on the transform property.</p>
<div class="container">
  <img id="image" src="http://tympanus.net/codrops-playground/assets/images/cssref/properties/transform/transform-cat.jpg" alt="Image of a kitten.">
</div>
body {
  background-color: #F5F5F5;
  color: #555;
  font-size: 1.1em;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.container {
  margin: 10px auto;
  max-width: 700px;
}

img {
  -webkit-transition: -webkit-transform 1s;
  transition: -webkit-transform 1s;
  transition: transform 1s;
  box-shadow: 0 0 10px 5px rgba(0, 0, 0, 0.2);
  max-width: 100%;
}

img:hover {
  cursor: pointer;
}

.transform {
  -webkit-transition: -webkit-transform 1s;
  transition: transform 1s;
  -webkit-transform: perspective(800px) rotateX(-90deg) translateZ(300px);
  transform: perspective(800px) rotateX(-90deg) translateZ(300px);
}
var img = document.getElementById("image");
var transformed = false;
img.onclick = function(){
  if(transformed == false) {
    this.classList.add('transform');
    transformed = true;
  }
  else {
    this.classList.remove('transform');
    transformed = false;
  }

}