body { margin: 0; background: #fbfaf7; color: #222; font: 17px/1.6 Georgia, "Times New Roman", serif; }
main { max-width: 640px; margin: 0 auto; padding: 48px 16px; }
h1 { font-size: 30px; margin: 0 0 16px; }
h2 { font-size: 20px; margin-top: 32px; }
a { color: #1d5fa8; }
.muted { margin-top: 40px; color: #777; font-size: 15px; }