<!DOCTYPE html>
<html>
<body>
<div style="width: 10px; height: auto;">
    <div style="margin-bottom: 150px; width: 10px; height: 10px;"></div>
</div>
<div style="margin-top: -100px; width: 200px; height: 200px;"></div>

<div style="width: 10px; height: 100px;">
    <div style="margin-bottom: 150px; width: 10px; height: 10px;"></div>
</div>
<div style="margin-top: -100px; width: 200px; height: 200px;"></div>

<div style="margin-bottom: 150px; width: 10px; height: 100px;"></div>
<div style="margin-top: -100px; width: 200px; height: 200px;"></div>

</body>
</html>