title: Why is my animation not playing?
body: <p>I've followed a short tutorial to create a bouncing arrow however the code I've used it pretty much the same excluding small differences.</p>
  
  <p>However, when I add it to my hero unit, it doesn't play my animation.</p>
  
  <p>It could be the <code>transform</code> or <code>keyframe</code> mixins I used...</p>
  
  <p>Here is the JSFiddle: <a href="http://jsfiddle.net/x9hxfusa/" rel="nofollow">http://jsfiddle.net/x9hxfusa/</a></p>