body { font-family: Arial, sans-serif; background: #fff; color:#111; }
.wrap { max-width: 980px; margin: 28px auto; padding: 0 14px; }
input { margin: 4px 6px 4px 0; padding: 8px; min-width: 260px; }
button { padding: 8px 12px; margin: 4px 6px 4px 0; }
pre { background:#f6f6f6; padding: 12px; overflow:auto; }
hr { margin: 18px 0; }