title: css content without pseudo-class
body: <p>I wrote a class with content but seems content just work for pseudo-classes.</p>
  
  <p>How to modify my code?</p>
  
  <p><a href="http://jsfiddle.net/fuRKC/" rel="noreferrer">http://jsfiddle.net/fuRKC/</a></p>
  
  <pre><code>button.follow{
      content: 'Follow';
  }
  
  button.followed{
      content: 'Unfollow';
  }
  </code></pre>