body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    color: #333;
}
header {
    background-color: #004d99;
    color: white;
    padding: 20px;
    text-align: center;
}
section {
    margin-top: 20px;
    background: white;
    padding: 15px;
    border-radius: 5px;
}
a {
    color: #004d99;
    text-decoration: none;
}