<p>You can use /sandbox/ for writing and testing your own code. Nothing in /sandbox/ will get checked into the repo, except files that end in .example (so don't edit or add those files). To get started make a copy of index.html.example and rename it to index.html.</p>
<pre><b>npm start</b> will automatically copy these files over from .example if they don't already exist.</pre>
<p class="vjs-no-js">To view this video please enable JavaScript, and consider upgrading to a web browser that <a href="https://videojs.com/html5-video-support/" target="_blank">supports HTML5 video</a></p>
<p>This demo shows the effect of setting the <strong>noUITitleAttributes</strong> option for video.js. It also includes the <strong>:focus-visible</strong> polyfill (see focus-visible.html)</p>