【relation】
<html>
<head>
<script type="text/javascript" src='http://code.jquery.com/jquery-1.5.2.js'></script>
<script type="text/javascript">
$(document).ready(function(){
$("p").find("span").end().css("border", "2px red solid");
});
</script>
<style>
.selected { color:blue; }
</style>
</head>
<body>
<p><span>Hello</span>, how are you?</p>
</body>
</html>
