JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

img{max-width:100%;}

JavaScript

var img = new Image();
var div = document.querySelector('div');
div.appendChild(img);
img.onload = function() {
  alert('Width = ' + img.naturalWidth);
}
img.src = "https://picsum.photos/id/1015/6000/4000";