JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
                <li>
                    <h3>What can I do with Revu iPad?</h3>
                    <a id="toggle" href="#">Answer</a>
                    <div id="slider_content">
                    <p>Revu iPad includes some of the most popular features of Bluebeam Revu, enabling you to redline PDFs and collaborate with others on the go. Access PDFs through Dropbox, Box,  iTunes, or WebDAV and redline PDFs with markup tools* including your existing tool sets. Additionally, collaborate with project partners across the globe in real time using Bluebeam Studio. </p>
                    <p>Revu iPad does not include all the features of Bluebeam Revu. Our app is designed to provide users with the features they need to document issues and collaborate in the field, without compromising speed.</p>
                    <p>*Measurement annotations are currently not supported.</p>
                    </div>
                </li>
            </ul>

CSS

#slider_content {
    padding: 10px;
    margin: 20px;
    border: 1px solid #e8e8e8;
    border-radius: 4px;
}

JavaScript

//-vertical

var mySlide = new Fx.Slide('slider_content').slideIn('horizontal');
document.addEvent("domready", function() { 
   $('slider_content').slide('hide'); 
   $('toggle').addEvent('click', function(e) { 
      e.stop(); 
      mySlide.toggle(); 
   }); 
});