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HTML

              
                <button style="float:right;" onclick="document.documentElement.classList.toggle('wf-active');return false;">toggle font</button>

<h1>Font styled heading</h1>

<p>This demonstration uses a loader to dynamically load a web font. The default font is adjusted to ensure weights and spacing is approximately equivalent so the web font replacement isn't too jarring.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Omnis laudantium accusamus veniam necessitatibus? Iste, voluptatibus, incidunt. Voluptatum perspiciatis non est, quasi dolore deleniti dicta id praesentium illum vel officiis accusantium!</p>

<h2>A new sub-heading</h2>
<p>Aliquam ut mi et mauris ornare faucibus ac nec dolor. Nunc sed scelerisque leo. In viverra semper nulla, in rhoncus massa dapibus sit amet.</p>

<ul>
  <li>Donec vitae imperdiet leo. Curabitur arcu orci, congue nec tempor vitae, molestie at sem.</li>
  <li>Phasellus eget arcu eu velit semper dignissim. Aenean auctor sed neque nec egestas.</li>
  <li>Pellentesque velit lectus, fringilla sed tincidunt sed, euismod id velit.</li>
</ul>
              
            
!

CSS

              
                /* default styles */
body {
  font-family: arial, sans-serif;
  font-size: 100%;
  margin: 20px;
  color: #333;
  background-color: #eee;
}

h1, h2 {
  font-size: 1.6em;
  font-weight: 700;
  font-style: italic;
  line-height: 1.2;
  margin: 0 0 0.3em 0;
}

h2 {
  font-size: 1.3em;
  font-weight: 500;
  margin: 1em 0 0 0;
}

li {
  margin: 0.5em 0;
}

p {
  line-height: 1.5;
  margin: 0 0 1em 0;
}

button {
  font-family: arial;
  text-transform: uppercase;
  letter-spacing: 0;
}

/* fix arial spacing */
li, p {
  letter-spacing: 0.0125em;
}

/* web fonts activated */
html.wf-active body {
  font-family: 'Ubuntu';
}

html.wf-active li, html.wf-active p {
  letter-spacing: 0;
}
              
            
!

JS

              
                // font loader
var WebFontConfig = {
  google: {
    families: [ 'Ubuntu:400,300,400italic,300italic,500italic,500,700,700italic:latin' ]
  },
  timeout: 2000
};

(function(){

  "use strict";

  var wf = document.createElement("script");
  wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
    '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
  wf.async = 'true';
  document.head.appendChild(wf);

})();

              
            
!
999px

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