JSFiddle - React, Tailwind, and code Playground

HTML

<div id="clickme" class="red"> Click me </div>

CSS

div{ display:inline-block; margin:20px; border-radius:5px; padding:20px;cursor:pointer;}

.red {
 background:#CC0000;
}
.green {
 background:#00CC00;
}

JavaScript

$('#clickme').click(function(){

   $(this).toggleClass('red green');
    
});