.article > ele-chat-conversation {
  display: block;
  width: min(100%, 720px);
  margin: 16px 0 30px;
}
[data-group="chat-showcase"] .page-paper { transform: rotate(-1.5deg); }
@media (max-width: 700px) {
  .article > ele-chat-conversation { width: 100%; }
}