body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f2f2f2;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 15px;
    text-align: center;
}

main {
    padding: 20px;
}

h2 {
    color: #4CAF50;
}

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

footer {
    text-align: center;
    padding: 10px;
    background-color: #4CAF50;
    color: white;
}