<style>
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}
header {
    background-color: #007BFF;
    color: white;
    text-align: center;
    padding: 20px;
}
header h1 {
    font-size: 2em;
}
nav {
    background-color: #333;
    color: white;
}
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
nav ul li {
    display: inline;
    margin-right: 20px;
}
nav ul li a {
    text-decoration: none;
    color: white;
}
nav ul li a:hover {
    text-decoration: underline;
}
section {
    padding: 20px;
}
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}
</style>