JSFiddle - React, Tailwind, and code Playground

HTML

<body>
<p>Drag image into the rectangle:</p>

<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>

    <img id="drag1" src="http://iconbug.com/data/29/128/1cc6b61217921b624db0cd6cfd6d1360.png" draggable="true" ondragstart="drag(event)" />
    
</body>

CSS

#div1 {width:250px;height:150px;padding:10px;border:1px solid #aaaaaa;}

JavaScript

function allowDrop(ev) {
    ev.preventDefault();
}

function drag(ev) {
    ev.dataTransfer.setData("Text",ev.target.id);
}

function drop(ev) {
    var data=ev.dataTransfer.getData("Text");
    ev.target.appendChild(document.getElementById(data));
}