JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" id="clickme">Click Me</a>
<div id="extra">More text</div>

CSS

#clickme {
    background-color: red;
}
#extra {
    display: none;
    width: 100px;
    background-color: blue;
}

JavaScript

$("#clickme").click(function() {
  $("#extra").fadeToggle();
});