JSFiddle - React, Tailwind, and code Playground

by iii l

HTML

<div></div>

CSS

div {
    background:red;
    width:100px;
    height:100px;
    border-radius:50px;
    transition: all 1s;
}
div.scale {
    width:300px;
    height:300px;
    border-radius:150px;
}

JavaScript

setInterval ( function() {
    $('div').toggleClass('scale');
},1000);