title: How to preview a static site?
body: <p>With Ruby on Rails I can run <code>rails s -p 3000</code> and preview my site at <code>localhost:3000</code>. </p>
  
  <p>With React I can run <code>npm start</code> and view the site at <code>localhost:8080</code>.</p>
  
  <p>What if I just have html and CSS files, how do I preview that?</p>