body {
    background-color: #0d0d0d;
    color: #f0f0f0;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
header {
    background-color: #111;
    padding: 20px;
    text-align: center;
}
h1 {
    color: gold;
}