title: Javascript - move box from current position ( testimonial slider )
body: <p>I can't figured out how to move the boxes <code>back and forth</code>.</p>
  
  <p>I can move from <code>left to right</code>, but if i try from <code>right to left</code> it goes crazy.</p>
  
  <p>Here you have the <a href="https://gist.github.com/grecdev/e44f22f067428ada54914705e7f4098d" rel="nofollow noreferrer">code</a></p>
  
  <p>Here you have the <a href="https://codepen.io/grecdev/pen/PoYrWBr" rel="nofollow noreferrer">live example</a></p>