body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}

header {
    background-color: #333;
    color: white;
    padding: 1em;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5em;
}

#hero {
    text-align: center;
    padding: 2em;
}