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    We can't trust that any JS files will
    be downloaded so better to handle
    adding JS class and inactive class inline
  var html = document.querySelector("html");
  setTimeout(function() {
  }, 3000);

<h1>Fighting FOUT</h1>

<p>The Flash Of Unstyled Text when loading webfonts is frustrating.</p> 

<p>Here's a technique to combat it.</p>

<p>By <a href="">Etch</a> <span class="heart">❤</span></p>


                body {
  font-family: 'Nunito', sans-serif;
  padding: 5%;

// Hide the text when we have JS
.js {
  p {
    opacity: 0;
    transition: opacity .2s ease-in-out;

// Show the text when the fonts have loaded or failed or too slow.
.wf-slow {
  p {
    opacity: 1;

.heart {
  color: #f66;


                WebFontConfig = {
  google: {
    families: ['Nunito']

// Async the webfont loader
(function(d) {
  var wf = d.createElement('script'), s = d.scripts[0];
  wf.src = '';
  wf.async = true;
  s.parentNode.insertBefore(wf, s);