body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
}
header {
    background-color: #4CAF50;
    color: white;
    padding: 1rem 0;
    text-align: center;
}
main {
    padding: 2rem;
    max-width: 800px;
    margin: auto;
}
section {
    margin-bottom: 2rem;
}
h2 {
    color: #4CAF50;
}
ul {
    list-style-type: disc;
    padding-left: 1.5rem;
}
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}