JSFiddle - React, Tailwind, and code Playground

CSS

img {
    max-width:500px;
}

JavaScript

var img=new Image();
img.onload=function(){
    document.body.appendChild(this);
    console.log(this.height);
    console.log(this.naturalHeight);
    console.log(window.getComputedStyle(this, null).getPropertyValue("height"));
    console.log(this.offsetHeight);
}
img.src='http://www.bubblews.com/assets/images/news/616498554_1357418372.jpg';