title: extanding layout page and links on other pages
body: <p>I'm using ejs for my node js project and using html template for views like that</p>
  
  <pre><code>app.engine('html', require('ejs').renderFile);  app.set('view engine', 'html');
  </code></pre>
  
  <p>I want to use layout.html for my other pages, how can I exdent it? Thanks!</p>