body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: f0f0f0;
}

header {
    margin-bottom: 20px;
}

h1 {
    color: #333;
}

nav {
    margin-top: 20px;
}

.nav-links {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 20px;
}

.nav-links li {
    background-color: #007bff;
    padding: 10px 20px;
    border-radius: 5px;
}

.nav-links a {
    color: white;
    text-decoration: none;
}

.nav-links li:hover {
    background-color: #0056b3;
}