Make planet  spin on click
I'm not a smart man.

Just figured out that I was covering the buttons with the #orbit div...

&lt;body&gt;
  &lt;div&gt;
    &lt;div id='orbit'&gt;&lt;/div&gt;
    &lt;div id="left-button"&gt;&lt;/div&gt;
    &lt;div id="right-button"&gt;&lt;/div&gt;
  &lt;/div&gt;
&lt;/body&gt;