JSFiddle - React, Tailwind, and code Playground

by igalst

HTML

<div>foo</div>
<button type="button">click</button>

CSS

.red { color: red; }

JavaScript

$("button").on("click", function() {
    var isRed = Math.random() > 0.5;
    $("div").toggleClass("red", isRed);
});