//codemirror.net/" target="_blank">CodeMirror</a> library to render the code editor.
  The full source code is available on <a href="https://github.com/dashborg/hibiki/tree/main/playground/" target="_blank">GitHub</a>.
</p>
<p>
  The preview you see in the bottom right is an &lt;iframe&gt; that renders the HTML in the code
  block above.  Here is the full template (<a target="_blank" href="https://github.com/dashborg/hibiki/tree/main/playground/playground-iframe-bulma.html">GitHub</a>).  It imports the Hibi