body{margin:0;font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#1f2328;background:#fff}
main{max-width:680px;margin:0 auto;padding:24px 16px 48px}h1{font-size:28px;line-height:1.25}h2{font-size:20px;margin-top:28px}a{color:#1d6b5a}