    Include a single, unminified stylesheet:
                  </p>
                  <pre>include_css 'diagnostics.css'&#x000A;=&gt;  &lt;link href=&quot;/stylesheets/diagnostics.css&quot; media=&quot;screen,projection&quot; rel=&quot;stylesheet&quot; type=&quot;text/css&quot; /&gt;</pre>
                  <p>
                  Include a bundle of stylesheets (i.e., a concatenated set of stylesheets;
                  configure in config/assets.yml):
                  </p>
                  <pre>include_cs