body {
            font-family: 'Arial', sans-serif;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            align-items: center;
            height: 100vh;
            background-color: #f5f5f5;
            color: #333;
        }
        header {
            margin-top: 20px;
            font-size: 24px;
            font-weight: bold;
            text-align: center;
        }
        img {
            max-width: 90%;
            max-height: 70%;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }
        footer {
            margin-bottom: 20px;
        }
        .next-button {
            background-color: #007bff;
            color: #fff;
            border: none;
            padding: 10px 20px;
            border-radius: 5px;
            text-decoration: none;
            font-size: 16px;
            cursor: pointer;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        .next-button:hover {
            background-color: #0056b3;
        }