iframe简单后台架构

实例代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>简单后台架构</title>
    <style>
        body {
            height: 100vh;
            width: 100vw;
            display: grid;
            grid-template-columns: 10em 1fr;
            grid-template-rows: 6em 1fr;
            margin: 0;
        }
        body .header {
            grid-column-end: span 2;
            border-bottom: 1px solid currentColor;
            background-color: #efe;
            padding: 2em;
            display: flex;
            align-items: center;
        }
        body .header div {
            margin-left: 500px;
        }
        body .nav {
            background-color: #efc;
            margin: 0;
            padding-top: 1em;
            list-style: none;
        }
        body iframe {
            width: calc(50vw - 5em);
            height: calc(50vh - 3em);
            border-left: 1px solid currentColor;
        }
    </style>
</head>
<body>
    <!-- 页面顶端 -->
    <div class="header">
        <h1>后台管理</h1>
        <div>
            <span>admin</span>
            <a href="">退出</a>
        </div>
    </div>
    <!-- 左侧导航 -->
    <ul class="nav">
        <li><a href="" demo1.html="" target="content">菜单项1</a></li>
        <li><a href="" demo2.html="" target="content">菜单项2</a></li>
        <li><a href="" demo3.html="" target="content">菜单项3</a></li>
        <li><a href="" demo4.html="" target="content">菜单项4</a></li>
    </ul>
    <!-- 右侧内容 -->
    <iframe src="" frameborder="1" name="content" style="border-color:aquamarine;"></iframe>
</body>
</html>
运行代码效果如下：
用iframe实现简单后台架构

iframe简单后台架构

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