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

header {
    color: white;
    padding: 10px 20px;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 10px;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 5px 10px;
}

main {
    padding: 20px;
}

h2 {
    color: #007BFF;
}