body{font-family:system-ui,sans-serif;max-width:40rem;margin:2rem auto;padding:0 1rem;line-height:1.5}.before{color:#b00020}.after{color:#0a7d28}.error{color:#b00020}.snippet{font-family:monospace;margin:.25rem 0 .75rem;white-space:pre-wrap}.rule{margin-bottom:1rem}.actions{margin-top:1.5rem;display:flex;gap:.5rem}