body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1em;
    text-align: center;
}

main {
    max-width: 800px; /* Limit the maximum width */
    margin: auto; /* Center the main content */
    padding: 20px;
}

footer {
    text-align: center;
    padding: 2em 0;
    background-color: #f1f1f1;
}

@media screen and (max-width: 600px) {
    header {
        font-size: 1.5em;
    }

    footer {
        font-size: 0.8em;
    }
    main {
        padding: 10px; /* Adjust padding for smaller screens */
    }
}