body{margin:0;font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:#222;background:#fafaf8}
main{max-width:720px;margin:0 auto;padding:48px 20px 80px}
header{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid #e4e4e0;padding-bottom:12px;margin-bottom:32px}
header a{color:#222;text-decoration:none;font-weight:600}nav a{margin-left:18px;color:#666;font-weight:400}
h1{font-size:1.6em;margin:.2em 0}h2{font-size:1.15em;margin:1.8em 0 .3em}
.meta{color:#888;font-size:.9em}a{color:#1f5f8b}code{background:#efefea;padding:1px 5px;border-radius:3px;font-size:.92em}
footer{margin-top:64px;color:#999;font-size:.85em;border-top:1px solid #e4e4e0;padding-top:12px}