<!DOCTYPE html>
<html>
<head>
<style type="text/css">
p {border:solid 10px black;}
</style>
</head>
<body>
<p>aaa bbb&nbsp;&nbsp;&nbsp;cccccc</p>
<p><span>aaa bbb&nbsp;&nbsp;&nbsp;cccccc</span></p>
<p><span>aaa bbb&nbsp;&nbsp;</span>&nbsp;cccccc</p>
<p><span>aaa bbb&nbsp;</span>&nbsp;<span>&nbsp;cccccc</span></p>
</body>
</html>