title: Pinch Zoom only on a image (and not the rest of the page)
body: <p>I resume the situation:</p>
  
  <p>I have a responsive website with a "zoom box" (jquery script that makes a overlay black cache and shows an image over the page).</p>
  
  <p>I want to enable the pinch zoom on this "layer" of my website (or at least on the image).</p>
  
  <p>But when we use "pinch zoom", all the website is affected!</p>
  
  <p>How can i make this pinch zoom being enabled only for that image (or better this overlay)...  </p>
  
  <p>Thank you.</p>