title: Less css, nested attributes, :hover::after
body: <p>Is it possible to do this with less?</p>
  
  <pre><code>a {
      &amp;:after {
          background: red;
      }
      &amp;:hover {
          &amp;:after {
              background: blue;
          }
      }
  }
  </code></pre>
  
  <p>I can't get the <code>:after</code> to change color when hovering over <code>a</code>?</p>