JSFiddle - React, Tailwind, and code Playground

by Gary Voss

HTML

<div id="h1" class"header">Hello </div>
<hr>
<div id="h2" class"header">what about this one </div>

JavaScript

var header = document.getElementById('h1');

var newSpan = document.createElement("span");
header.appendChild(newSpan);
newSpan.innerHTML = "i'm here";