<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>查找父元素</title>
<script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
</head>
<body>
<div class="divclass" id="div1" style="width:300px;height:150px;">
<div style="width:200px;height:100px; margin-top:10px;margin-left:30px;">
<p>
给祖先添加边框
</p>
</div>
</div>
</body>
</html>
<script>
$("p").closest("div[id='div1']").css("border", "1px solid blue");
</script>