body {
    font-family: Arial, sans-serif;
    margin: 0; padding: 0;
    background-color: #f4f4f4; text-align: center;
}
header {
    background-color: #004080;
    color: white; padding: 20px;
}
.slogan {
    font-style: italic;
}
nav a {
    color: white; margin: 0 10px;
    text-decoration: none;
}
footer {
    background-color: #333;
    color: white; padding: 10px;
    position: fixed; width: 100%; bottom: 0;
}