title: How do I apply jquery for mobile only?
body: <p>I need to apply the following jquery for mobile browsers only:</p>
  
  <pre><code>&lt;script&gt;
     $('.right').insertBefore('left');
  &lt;/script&gt;
  </code></pre>
  
  <p>This is to reorder the position of bootstrap columns.</p>
  
  <p>How do I do this? Does it need to be wrapped in something?</p>