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              <div class="wrapper">
  <div class="page">
      <div class="background"></div>
      <div id="rabbit">Click the rabbit's ears!</div>
      <div class="foreground"></div>
      <p>She was just in time to see him pop down a hole between a great tree's roots.</p>
  </div>
</div>
            
          
!
            
              /* Possibly Interesting Stuff */
#rabbit {
  background: url('http://rachelnabors.com/alice-in-videoland/book/img/park5_rabbit.png') 0 0 / 100% 100%;
  cursor: pointer;
  position: absolute;
  top: 15%;
  left: 60%;
  width: 14.64844%;
  padding-top: 31.00586%;
}

body {
  background: #000;
}
.wrapper {
  max-width: 133.33vh;
  margin: 0 auto;
}
.page {
  background: #431236;
  height: 0;
  overflow: hidden;
  padding-top: 75%;
  position: relative;
  text-indent: 100%;
  white-space: nowrap;
}

.foreground {
  height: 100%;
  background: url('http://rachelnabors.com/alice-in-videoland/book/img/bg_park5_2.png') no-repeat 100% 100% / 100% auto;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  pointer-events: none;
}

.background {
  background: url('http://rachelnabors.com/alice-in-videoland/book/img/bg_park5_1.png') no-repeat 0 0 / 100% auto;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
            
          
!
            
              var whiteRabbit = document.getElementById("rabbit");

var rabbitDownKeyframes = new KeyframeEffect(
    whiteRabbit, 
    [
      { transform: 'translateY(0%)' }, 
      { transform: 'translateY(100%)' }
    ], 
    { duration: 3000, fill: 'forwards' }
  );

var rabbitDownAnimation = new Animation(rabbitDownKeyframes, document.timeline);

// On tap or click,
whiteRabbit.addEventListener("mousedown", downHeGoes, false);
whiteRabbit.addEventListener("touchstart", downHeGoes, false);

// Trigger a single-fire animation
function downHeGoes(event) {

  // Remove those event listeners
  whiteRabbit.removeEventListener("mousedown", downHeGoes, false);
  whiteRabbit.removeEventListener("touchstart", downHeGoes, false);  

  // Play rabbit animation
  rabbitDownAnimation.play();
    
}
            
          
!
999px
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