body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

main {
    padding: 20px;
}

h2 {
    color: #333;
}

section {
	max-width: 800px;
    margin-bottom: 30px;
}

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

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}