JSFiddle - React, Tailwind, and code Playground

by adeneo

HTML

<div id=''>
    test1
</div>
<div id='id1'>
    test2
</div>
<div id=''>
    test3
</div>

JavaScript

var elem = document.getElementById('id1');
var br   = document.createElement('br');
elem.parentNode.insertBefore(br.cloneNode(false), elem);
elem.parentNode.insertBefore(br.cloneNode(false), elem.nextSibling);