JSFiddle - React, Tailwind, and code Playground

by luka kupunia

HTML

<div id="elem" class="active">active</div>
<button onclick="changeClass()">changeClass</button>

CSS

.active {
    color: green;
}
.not-active {
    color: red;
}

JavaScript

function changeClass(){
	document.querySelector('#elem').classList.replace('active','not-active');
}