body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 20px;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 18px;
}

main {
    padding: 20px;
}

h1 {
    font-size: 28px;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: #333;
    color: white;
}

footer p {
    margin: 0;
}