body{font-family:Georgia,serif;max-width:720px;margin:40px auto;padding:0 20px;color:#2b2b2b;line-height:1.6}
header a{color:#2b2b2b;text-decoration:none;font-size:1.4em}
nav a{color:#555;margin-right:16px;text-decoration:none}
article{border-bottom:1px solid #ddd;padding:16px 0}
h1{font-weight:normal}