<!DOCTYPE HTML>
<html>
<head>
<style>
#div1 { width: 350px; height: 70px; padding: 10px; border: 1px solid #aaaaaa;
}
</style>
<script>
function allowDrop(ev) { ev.preventDefault();
}
function drag(ev) { ev.dataTransfer.setData("Text", ev.target.id);
}
function drop(ev) { let data = ev.dataTransfer.getData("Text"); ev.target.appendChild(document.getElementById(data)); ev.preventDefault();
}
</script>
</head>
<body>
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<br>
<p id="drag1" draggable="true" ondragstart="drag(event)">This is a draggable paragraph. Drag this element into the rectangle.</p>
</body>
</html>