<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="/jquery/js/jquery.js"></script>
<script>
$(document).ready(function(){
$("p:last").addClass("selected");
});
</script>
<style>
p { margin: 8px; font-size:16px; }
.selected { color:red; }
.highlight { background:yellow; }
</style>
</head>
<body>
<p>Hello</p>
<p>and</p>
<p>Goodbye</p>
</body>
</html>
[実行結果]
[フレーム]