JSFiddle - React, Tailwind, and code Playground

by maharajan a

HTML

<div id="box" class="box">

            </div>

CSS

#box{

                    height: 100px;
                    width: 100px;
                    background-color: blue;
                    margin: 0px;
                    display: inline-block;
            }

JavaScript

var element = document.getElementById('image_1'),
    style = window.getComputedStyle(element),
    width = style.getPropertyValue('width');
document.getElementById("box").onclick= function() {
    
    alert(width);
}