title: class for link not working with CSS
body: <p>I've assigned the class "greenbutton" to a link in my html, but none of the changes I make to this class on my CSS take effect. </p>
  
  <p><strong>home.html.erb</strong></p>
  
  <pre><code>&lt;p&gt;&lt;a class="greenbutton" href="#"&gt;Sign Up&lt;/a&gt; to learn more&lt;/p&gt;
  </code></pre>
  
  <p><strong>custom.css.scss</strong></p>
  
  <pre><code>.greenbutton a:link, .greenbutton a:visited {
  font-size: 14px;
  text-decoration: none;
  }
  </code></pre>
  
  <p>The weird thing about this is that when I assign this class to the preceding paragraph tag, the changes take effect. Any thoughts?</p>