body {
    font-family: Arial, sans-serif;
    background-color: #0a0a0a;
    color: #fff;
    text-align: center;
    margin: 0;
    padding: 0;
}
header {
    background: linear-gradient(to right, #ff8c00, #ff2e63);
    padding: 20px;
}
h1 {
    margin: 0;
    font-size: 2em;
}