owncast/webroot/styles/standalone-chat.css

/*
Example/Suggested custom CSS settings to set in OBS.
///
html { margin: 0px; padding: 20px; background-color: rgba(0,0,0,0.5); font-size: 24px; }
///
This one will add some space around box, give it a semi-transparent dark background; and increase the overall to a base unit of 24px.

You may change any of these settings to fit your presentation layout. Note that the overall message text color is white.
*/

/*
The styles in this file mostly ovveride those coming from chat.css
*/

/* modify this px number if you want things to be relatively bigger or smaller */
#messages-only {}

::-webkit-scrollbar {
  width: 0px;
  background: transparent;
}

#messages-only #messages-container {
  height: 100%;
  height: 100vh;
  overflow: auto;
}
#messages-only .message-content {
  text-shadow: 1px 1px 0px rgba(0,0,0,0.25);
}
#messages-only .message-avatar {
  display:  none;
  box-shadow: 0px 0px 3px 0px rgba(0,0,0,0.25);
}
#messages-only .message-avatar img {
  height: 1.8em;
  width: 1.8em;
}
#messages-only .message {
  padding: .5em;
}

#messages-only .message-text {
  font-weight: 400;
  color: white;
}
#messages-only .message-text a {
  color: #fc0;
}
#messages-only .message-author {
  color: rgba(20,0,40,1);
}

#messages-only .message-text .chat-embed,
#messages-only .message-text .instagram-embed,
#messages-only .message-text .embedded-image,
#messages-only .message-text .youtube-embed  {
  max-width: 350px;
}