        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
        }
        header {
            background: #333;
            color: white;
            padding: 20px;
            text-align: center;
        }
        main {
            padding: 20px;
        }
        footer {
            background: #333;
            color: white;
            text-align: center;
            padding: 10px;
            position: fixed;
            bottom: 0;
            width: 100%;
        }