 </head>

  <body>
    <section class="preview">

      <h1>Advanced HTML Animals</h1>

      Llama
      Tall, woolly quadruped, pointy ears. Sometimes rideable, but grumpy and spits a lot. Big fan of list items.
      Anaconda
      A very large constrictor snake; travels rapidly by way of anchors to sneak up on his prey.
      Hippopotamus
      His description is bottomless.

    </section>

    <textarea class="playable playable-css" style="height: 130px;">
h1 {
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