title: Hyperlinks not selectable by touch in Three.js demo
body: <p>Just testing out a recent Three.js tutorial @ <a href="https://tympanus.net/Tutorials/StickyImageEffect/" rel="nofollow noreferrer">https://tympanus.net/Tutorials/StickyImageEffect/</a> and I've discovered a few issues that have stumped me while attempting to debug.</p>
  
  <p>Firstly, while testing on an iPad and a couple Smartphones hyperlinks are seemingly active but unresponsive to touch &amp; tap. It seems the "sticky" effect/three.js has total control over the viewport and will not allow touch based devices access to links.</p>
  
  <p>What would need to be augmented to allow the selecting of links and in the process also ignore the triggering of the "sticky" effect when doing so?</p>
  
  <p>Secondly, when viewing on an iPad in landscape orientation there is a small gap at the top of the viewport.</p>
  
  <p>Would this at all be related to the cursor, which is not in use on touch devices?</p>