 href="speaker-animation.html">speaker animation</a></li>
        <li><a href="kitty-animation.html">kitty animation</a></li>
        <li><a href="digital-text-animation.html">digital text animation</a></li>
        <li><a href="svg-animation.html">svg animation</a></li>
      </ul>
    </div>
    <main class="container">
      <article>
        <h1 class="title">Cassette Animation</h1>
        <div class="block">
          <h2>HTML</h2>
          <div class="box code">
            <pre>&lt;div class=&quot;