<span></span><span></span><span></span><span></span><span></span>
      </div>
    </section>

    <section class="demo from-last-reversed">
      <h1>From last reversed</h1>
      <div class="demo-line">
        <span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span>
      </div>
    </section>

    <section class="demo from-index">
      <h1>From index</h1>
      <div class="demo-line">
        <span></span><span></spa