<html>
<head>
<style>
.foo{display:inline-block;height:32px;width:32px;position:relative}
</style>
</head>
<body>
<div>Line 1</div>
<div>Line 2
<span>
<span class="foo"></span>
</span>
<span>
<span class="foo"></span>
</span>
<span>
<span class="foo"></span>
</span>
<span>
<span class="foo"></span>
</span>
</div>
<div>Line 3</div>
</body>
</html>