body {
    font-family: Arial, sans-serif;
    background: #f7f7f7;
    color: #1a1a1a;
    margin: 0;
}
header {
    background: #004d40;
    color: white;
    padding: 20px;
    text-align: center;
}
main {
    padding: 20px;
}
footer {
    background: #004d40;
    color: white;
    text-align: center;
    padding: 10px;
}
.sitelinks a {
    display: inline-block;
    margin: 10px;
    background: #00796b;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
}