* { box-sizing:border-box; }
html, body { margin:0; width:100%; height:100%; overflow:hidden; background:#f5f7fb; font-family:Arial,sans-serif; }
[hidden] { display:none !important; }
#publicFrame { display:block; width:100%; min-width:0; max-width:100%; height:100vh; height:100dvh; border:0; background:#fff; }
#wrapperMessage { padding:24px; line-height:1.6; overflow-wrap:anywhere; }