body{font:18px system-ui;max-width:760px;margin:50px auto;padding:24px;color:#19263a;background:#f5f7fb}a{color:#175bd5}button,.button{display:inline-block;background:#175bd5;color:white;border:0;border-radius:10px;padding:16px;text-decoration:none}p{line-height:1.65}nav a{margin-right:20px}