body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

nav {
    background-color: #333;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

nav a:hover {
    color: #4CAF50;
}

.content {
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    width: 80%;
    border-radius: 8px;
}

h1 {
    color: #333;
}