0px;"></div> <!-- Fill the inset space -->
    <div class="box" style="block-size: 24px;"></div> <!-- Box at corner -->
    <div class="box" style="block-size: 36px;"></div>
    <div class="box" style="block-size: 36px;"></div>
    <div class="box" style="block-size: 24px;"></div> <!-- Box at corner -->
    <div class="long box" style="block-size: 10px;"></div> <!-- Fill the inset space -->
  </main>
</html>
