body {
            font-family: Arial, sans-serif;
            margin: 0;
            background-color: #f4f4f4;
        }

        header {
            background-color: #333;
            color: white;
            padding: 15px;
            text-align: center;
        }

        nav {
            background-color: #555;
            padding: 10px;
            text-align: center;
        }

        nav a {
            color: white;
            margin: 0 10px;
            text-decoration: none;
            font-weight: bold;
        }

        nav a:hover {
            text-decoration: underline;
        }

        main {
            padding: 20px;
            text-align: center;
        }

        img {
            max-width: 300px;
            border-radius: 10px;
        }

        footer {
            margin-top: 20px;
            padding: 10px;
            background-color: #333;
            color: white;
            text-align: center;
        }