Multiply elements with JavaScript

Make 1 box appear on the page 4 times with JavaScript

HTML

<div class="box">
I am a box.
</div>

CSS

.box {
border: 1px solid green;
}

JavaScript

let box = document.querySelector('.box');
console.log(box);
for(let x = 0; x < 3; x++) {
	let cln = box.cloneNode(true);
	document.body.appendChild(cln)
}