title: Add up arrow on combodate select box
body: <p>Is there a way we can tweak or hack the default combodate? Please check <a href="https://vitalets.github.io/combodate/" rel="nofollow noreferrer">here</a>. It's an <code>&lt;input&gt;</code> that is replaced by a <code>&lt;select&gt;</code> tag. Now, wanted to add a arrow up on a select box option like in <code>&lt;input type="number"&gt;</code> up and down arrows. </p>
  
  <p>Snippet:</p>
  
  <pre><code>&lt;input type="text" id="date" data-format="DD-MM-YYYY" data-template="D MMM YYYY" name="date" value="09-01-2013"&gt;
  
  &lt;script&gt;
  $(function(){
      $('#date').combodate();    
  });
  &lt;/script&gt;
  </code></pre>