title: How to make an image animation effect like Apple.com?
body: <p>Here is the demo:</p>
  
  <p><a href="http://www.apple.com/ipad/smart-cover/" rel="nofollow">http://www.apple.com/ipad/smart-cover/</a></p>
  
  <p>The Apple smart-cover demo can drag and showcase how the smart-cover works. How does Apple do that? What is the idea behind? Thank you.</p>