body{max-width:56rem;margin:2rem auto;padding:0 1rem;font-family:system-ui,sans-serif;line-height:1.4}button{margin-right:.5rem}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid #ccc;padding:.4rem}code{font-size:1.1rem}.error{color:#b00020}