*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%}body{font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:#f1f5f9}[contenteditable][data-placeholder]:empty:before{content:attr(data-placeholder);color:#94a3b8}[contenteditable] img{max-width:100%;height:auto}