JSFiddle - React, Tailwind, and code Playground

by Venkat Raj

HTML

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css">
<div id="icon" data-icon="">
Icon
</div>

CSS

#icon:after {
  content: attr(data-icon);
}

JavaScript

var icon = document.querySelector('#icon');
icon.setAttribute('data-icon', '&#x086;');