 Fill the margin and inset space -->
    <div class="box" style="height: 40px; top: 40px; right: 120px;"></div>
    <div class="box" style="height: 40px; top: 80px; right: 120px;"></div>
    <div class="long box" style="height: 40px; top: 120px; right: 0;"></div> <!-- Fill the margin and inset space -->
  </main>
</html>
