body {
    font-family: Arial, sans-serif;
    line-height: 1.5;
    margin: 0 auto;
    max-width: 960px;
    padding: 20px;
}

header {
    text-align: center;
    border-bottom: 1px solid #ccc;
    padding-bottom: 20px;
}

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

nav ul li {
    display: inline;
    margin: 0 15px;
}

main {
    padding: 20px 0;
}

footer {
    text-align: center;
    font-size: 0.8em;
    color: #666;
    border-top: 1px solid #ccc;
    padding-top: 20px;
    margin-top: 20px;
}