body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1rem;
    text-align: center;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h2 {
    border-bottom: 2px solid #4CAF50;
    padding-bottom: 0.5rem;
}

section {
    margin-bottom: 2rem;
}

section h3 {
    color: #4CAF50;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

ul li {
    margin: 0.5rem 0;
}

a {
    color: #4CAF50;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    background-color: #ddd;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}