请老师批改作业

来源：3-3 编程练习

DanielDu87

2021-10-04 16:39:15

<!DOCTYPE HTML>
<html lang="zh">
   <head>
      <meta charset="UTF-8">
      <meta name="viewport"
           content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
      <meta http-equiv="X-UA-Compatible" content="ie=edge">
      <title>title</title>
   </head>
   <body>
      <header>
         <div class="logo">logo</div>
         <nav>导航</nav>
      </header>
      <main>
         <article>文章</article>
      </main>
      <footer>尾部</footer>
   </body>
</html>