 />
    <meta name="description" content="请配置页面描述" />
</head>

<head>
    <title>Flex Layout Example</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            font-family: Arial, sans-serif;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: #333;
            color: #fff;
        }

        .list {
            display: flex;
            flex-direct