body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            background-color: #fff;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }

        h2 {
            color: #333;
        }

        nav ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
        }

        nav ul li {
            display: inline;
        }

        nav ul li a {
            text-decoration: none;
            color: #333;
            padding: 10px;
        }

        nav ul li a:hover {
            background-color: #ddd;
            border-radius: 3px;
        }

        .comment {
            background-color: #f9f9f9;
            border: 1px solid #ddd;
            padding: 10px;
            margin-bottom: 10px;
        }

        .comment p {
            margin: 0;
        }

        footer {
            margin-top: 20px;
            text-align: center;
            color: #666;
        }