body{margin:0;background:#f6f8fa;color:#17212b;font:17px/1.65 system-ui,sans-serif}main{max-width:760px;margin:4rem auto;padding:0 24px}nav{font-size:14px}h1{line-height:1.2}h2{font-size:21px;margin-top:2rem}a{color:#125b75}p{margin:1rem 0}