<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>hgroup和address元素</title>
</head>
<body>
<header>
<hgroup>
<h1>主标题</h1>
<h2>副标题</h2>
</hgroup>
</header>
<footer>
<address>
作者:hwd；电话：18022，地址：文安县
</address>
</footer>
</body>
</html>