body { font: 17px/1.6 -apple-system, "Segoe UI", Roboto, sans-serif; color: #1c1c1e; background: #fff; margin: 0; }
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem 4rem; }
h1 { font-size: 1.9rem; margin: 0 0 .5rem; }
h2 { font-size: 1.2rem; margin: 2.2rem 0 .4rem; }
p, li { margin: .5rem 0; }
nav, footer { font-size: .9rem; color: #6e6e73; }
nav { margin-bottom: 2.5rem; }
footer { margin-top: 3rem; border-top: 1px solid #e5e5ea; padding-top: 1rem; }
a { color: #0a58ca; }
.lead { font-size: 1.1rem; color: #3a3a3c; }