body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #1a1a1a;
    color: #fff;
    margin: 0;
    padding: 0;
}

header {
    background-color: #ff6600;
    padding: 20px;
    font-size: 24px;
}

main {
    padding: 20px;
}

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