title: jQuery inputmask datetime not work
body: <p>I'm trying to apply the datetime mask on an input but this didn't work 
  the jQuery plugin I used is <a href="http://robinherbots.github.io/Inputmask/" rel="nofollow noreferrer">inputmask</a>
  I did my code on <a href="https://codepen.io/fayekramzy/pen/GEBGXp" rel="nofollow noreferrer">codepen</a> site and include all needed js libraries but don't have any idea why this not work</p>
  
  <pre><code>&lt;input id="datetime" /&gt;
  
  $('#datetime').inputmask({
      mask: "2/1/y h:s t\\m",
      placeholder: "mm/dd/yyyy hh:mm xm",
      alias: "datetime",
      hourFormat: "12"
  }); 
  </code></pre>