playground.html

<!DOCTYPE html>
<html>
  <head>
    <title>Prismarine Viewer Playground</title>
    <meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover'>
    <style type="text/css">
      html {
        overflow: hidden;
        background: black;
      }

      html, body {
        height: 100%;

        margin: 0;
        padding: 0;
      }

      canvas {
        height: 100%;
        width: 100%;
        font-size: 0;

        margin: 0;
        padding: 0;
      }
      @font-face {
          font-family: mojangles;
          src: url(../../../assets/mojangles.ttf);
      }
    </style>
  </head>
  <body>
    <script type="text/javascript" src="playground.js"></script>
  </body>
</html>