title: Variables in rails with compass not working
body: <p>I am playing around with The Rails Pipeline and the "Compass" GEM.</p>
  
  <p>I wanna style my links and tried with this:</p>
  
  <pre><code>// File /assets/stylesheets/application.css.scss
  
  $grey: "#97A5A3";
  
  a {
      text-decoration: none;
      color: white;
  
      &amp;:hover {
          color:$grey;
          text-decoration: underline;
      }
      &amp;:visited {
          color: $grey;
      }
      &amp;:active {
          color: $grey;
      }
      &amp;:visited {
          color: $grey;
      }
  }
  </code></pre>
  
  <p>But it wont work...</p>
  
  <p>When I turn the variables into a HEX Code ("#123456") or an white ("white") it works. 
  They stay in the "standard" blue, violett schema.</p>
  
  <p>How should I use variables instead if not so?</p>