body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}

header {
    background-color: #007BFF;
    color: #fff;
    padding: 20px;
}

h1 {
    font-size: 36px;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h2 {
    font-size: 24px;
    color: #333;
}

p {
    font-size: 16px;
    color: #555;
}