JSFiddle - React, Tailwind, and code Playground

HTML

<div id="containerr">
  <dl>
      
    <dt>Headline One<a href="#" id="button" class="closed">Details</a></dt>
    <dd>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.</dd>
      
    <dt>Headline Two <a href="#" id="button" class="closed">Details</a></dt> 
    <dd>HLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua</dd>
      
    <dt>Headline Three<a href="#" id="button" class="closed">Details</a></dt>
    <dd>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua</dd>
      
  </dl>
</div>

CSS

body{
    background:#000;
    color:#fff;
}
a {
    color:#fff;
}

#containerr {
    max-width:680px;
    margin: 0 auto;
	width:680px;
	padding:0;
}

#containerr dt {
	font-size:46px;
	float:left;
	width:660px;
	padding:10px 10px 9px 10px;
	margin-top:15px;
	margin-bottom:-4px;
	border-top:1px solid white;
	cursor:pointer;
}

#containerr  dt:second-child {
	border-top:none;
  color:red;
}

#containerr dl dt:last-of-type {
    border-bottom:none;
    color:red;
    display:none;
}

#containerr dd {
	display:none;
	margin:0 0 15px 0;
	float:left;
	width:660px;
	padding:10px 10px 15px 10px;
}

#button {
	float:right;
	display:block;
	height:18px;
	width:17px;
	text-indent:-9999px;
}

.closed { background:url(button.png) left no-repeat; }

.open { background:url(button.png) right no-repeat; }

JavaScript

$(document).ready(function(){
	$("dt").click(function(){ // trigger 
		$(this).next("dd").slideToggle("fast"); 
		$(this).children("a").toggleClass("closed open"); 
	});
});