body {
    font-family: 'Courier New', Courier, monospace;
    background-color: #111;
    color: #eee;
    text-align: center;
    margin: 0;
    padding: 0;
}
header {
    background-color: #222;
    padding: 2rem 1rem;
}
main {
    padding: 2rem;
}
footer {
    background-color: #222;
    padding: 1rem;
    font-size: 0.8rem;
}