Kendo tabstrip

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.rtl.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2014.1.318/js/kendo.all.min.js"></script>
<body>
  <div id='example' class="k-content">
    <div id='tabstrip'>
      <ul>
        <li class="k-state-active">red</li>
        <li>green</li>
      </ul>
      <div class="one">
        red box
      </div>
      <div style="width: 50%;">
        green box
      </div>
    </div>
  </div>
 
</body>

CSS

#one 
{
    width: 50;
}

JavaScript

$(document).ready(function() {
      $("#tabstrip").kendoTabStrip({
      tabPosition: "left"
        
      });
    });