1"></div>
  <div class="box2" style="position: static;"></div>
</div>
<div style="left: 200px; top: 0px;">
  <div class="box1" style="z-index: -1;"></div>
</div>
<div style="left: 300px; top: 0px;">
  <div class="box1" style="z-index: 2;"></div>
  <div class="box2" style="z-index: 1;"></div>
</div>
<div style="left: 0px; top: 100px;">
  <div class="box1" style="position: static; float: left;"></div>
  <div style="height: 20px;"></div>
  <div class="box2" style="position: static;"></div>
</div>
<div style="l