JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>toggleClass Demo</title>
    <link href="toggleClass.css" rel="Stylesheet" type="text/css" />
    <script type="text/javascript" src="jquery-1.6.1.js"></script>
</head>
<body>

<div id="left"></div>
<div id="center"></div>
<div id="right"></div>
<button id="run">Set Center Color</button>
</body>
</html>

CSS

body
{
    background: black;
}

#left
{
background: gold; 
border: 1px solid #AAA; 
width: 80px; 
height: 80px; 
margin: 0 5px; 
float:left
}

#center
{
background: gold; 
border: 1px solid #AAA; 
width: 180px; 
height: 180px; 
margin: 0 5px; 
float:left
}

#right
{
background: gold; 
border: 1px solid #AAA; 
width: 80px; 
height: 80px; 
margin: 0 5px; 
float:left
}

.highlight 
{ 
background:orange; 
}

JavaScript

$(document).ready(function () {

    $("#run").click(function () {
        $("#center").toggleClass("highlight");
    });
});