Correction status:qualified
Teacher's comments:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>后台管理系统</title> <style type="text/css"> body { margin: 0; background-color: #eee; } ul { margin: 0; padding: 0; list-style: none; } /*头部*/ header { height: 45px; background-color: #35f1d4; } header div { width: 900px; margin: auto; padding: 0 15px; } header div h2 { margin: 0 0 0 25px; font-weight: normal; line-height: 45px; float: left; } header div nav { float: right; height: 45px; } header div nav ul li { float: left; padding: 0 15px; line-height: 48px; } header div nav ul li a { text-decoration: none; color: #333; font-size: 14px; } header div nav ul li a:hover { color: #666; } /*/头部*/ /*主体*/ main { width: 700px; height: 600px; margin: 0 auto; padding-left: 200px; overflow: hidden; } /*内容区*/ main article { float: left; min-height: 100%; width: 100%; } main article iframe { width: 100%; height: 600px; margin: auto; border: none; box-shadow: 5px 5px 10px rgb(0,0,0,0.3); } main article footer { margin: 0 auto; } main article footer p { text-align: center; } main article footer p a { text-decoration: none; color: #000; } /*/内容区*/ /*侧边栏*/ main aside { background-color: #fff; float: left; margin-left: -100%; position: relative; left: -200px; width: 200px; height: 100%; } main aside a { display: block; color: #636363; text-decoration: none; padding-left: 50px; height: 36px; line-height: 36px; border-bottom: 1px solid #f5f5f5; } main aside a:hover { color: #222; } /*/侧边栏*/ /*/主体*/ </style> </head> <body> <header> <div> <h2>后台管理系统</h2> <nav> <ul> <li> 欢迎管理员:<strong>admin</strong> </li> <li><a href="modify.html" target="main">修改密码</a></li> <li> <a href="javascript:void(0);" onclick="logout()">退出登录</a> </li> </ul> </nav> </div> </header> <main> <article role="container"> <iframe src="welcome.html" name="main"></iframe> <footer> <p> <a href="#">xx©版权所有</a> </p> </footer> </article> <aside> <ul> <li> <a href="setting.html" target="main">系统设置</a> </li> <li> <a href="user.html" target="main">用户管理</a> </li> <li> <a href="article.html" target="main">文档管理</a> </li> <li> <a href="cate.html" target="main">分类管理</a> </li> <li> <a href="product.html" target="main">产品管理</a> </li> </ul> </aside> </main> </body> <script type="text/javascript"> function logout() { if (window.confirm('是否退出?')) { window.location.href = 'login.html'; } else { return false; } } </script> </html>
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