body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 20px;
    background-color: #f4f4f4;
    color: #333;
}

header, footer {
    background: #333;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

main {
    padding: 20px;
    background: #fff;
}

section {
    margin-bottom: 20px;
}

h2 {
    border-bottom: 2px solid #333;
    padding-bottom: 10px;
}

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

li {
    margin-bottom: 10px;
}

a {
    text-decoration: none;
    color: #333;
}

a:hover {
    text-decoration: underline;
}