body {
    font-family: Georgia, "Times New Roman", serif;
    max-width: 720px;
    margin: 60px auto;
    padding: 0 20px;
    line-height: 1.7;
    color: #111;
}


header {
    margin-bottom: 50px;
}


nav {
    margin-top: 10px;
}


nav a {
    margin-right: 18px;
    text-decoration: none;
    color: #444;
}


nav a:hover {
    text-decoration: underline;
}


h1 {
    font-weight: normal;
    font-size: 32px;
    margin-bottom: 5px;
}


h2 {
    font-weight: normal;
    margin-top: 40px;
}


.publication {
    margin-bottom: 18px;
}


footer {
    margin-top: 60px;
    font-size: 14px;
    color: #666;
}