body {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px 20px;

    color: #222;
    background: #fff;

    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.65;
}

header {
    border-bottom: 1px solid #aaa;
    margin-bottom: 40px;
    padding-bottom: 12px;
}

.site-title {
    font-size: 1.5rem;
    font-weight: bold;
}

.site-title a {
    color: #111;
    text-decoration: none;
}

nav {
    margin-top: 8px;
}

nav a {
    margin-right: 20px;
}

a {
    color: #174a7e;
}

h1 {
    line-height: 1.2;
}

h2 {
    margin-top: 2em;
}

.author {
    color: #666;
    font-style: italic;
}

.article {
    max-width: 720px;
}

.article-list {
    padding-left: 20px;
}

.article-list li {
    margin-bottom: 10px;
}

.article-list span {
    color: #777;
    margin-left: 10px;
}

footer {
    border-top: 1px solid #aaa;
    margin-top: 60px;
    padding-top: 15px;
    color: #777;
    font-size: 0.9rem;
}