JSFiddle - React, Tailwind, and code Playground

by David Thomas

HTML

<div id="div" class="class1">click here</div>

CSS

.class1 {
    color: #f00;
}

.class2 {
    color: #00f;
}

JavaScript

function classToggle() {
    this.classList.toggle('class1');
    this.classList.toggle('class2');
}
document.querySelector('#div').addEventListener('click', classToggle);