body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    color: #222;
    margin: 0;
    padding: 0;
}
header {
    background-color: white;
    padding: 20px;
    text-align: center;
}
nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #333;
}
.logo {
    height: 60px;
}
.hero {
    text-align: center;
    padding: 50px 20px;
    background: #ffffff;
}