JSFiddle - React, Tailwind, and code Playground

HTML

<div id="square"></div>

<a href="javascript:move()">MOVE</a>

CSS

div#square {
    width: 10px;
    height: 10px;
    position: absolute;
    top:0px;
    background-color:red;
}

JavaScript

window.move = function() {
    var $square = $("#square");
    for (var i =0; i<100000; i++) {
        $square.css("top", i/1000);
    }
}