JSFiddle - React, Tailwind, and code Playground

HTML

<div class='randomizeme'>Derp</div>

CSS

div.randomizeme {
    position:absolute;
    width:50px;
    height:50px;
    background:black;
}

JavaScript

$('div.randomizeme').css({
    top: Math.random() * 100+'%',
    left: Math.random() * 100+'%'
});