title: Can't apply Css style to React-datetime using className
body: <p>I am trying to add border-radius: 5px to React-datetime component using className but not working.</p>
  
  <p>E.g:</p>
  
  <pre><code>  import ReactDateTime from ‘react-datetime’;
  
  &lt;ReactDateTime className=‘datetime’ /&gt;
  
   .datetime{
   border-radius: 5px;
   }
  </code></pre>
  
  <p>I know that react-datetime module provides seperate css styles. But my concern is why it is not accepting when I do using className.</p>