body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #111;
    color: #fff;
    text-align: center;
}
header {
    background-color: #e91e63;
    padding: 40px 20px;
}
h1 {
    margin: 0;
    font-size: 3rem;
}
section {
    padding: 20px;
}
footer {
    padding: 20px;
    background-color: #222;
}