/* ==UserStyle==
@name           YouTube: Hide Tickers (Live Chat)
@namespace      github.com/openstyles/stylus
@version        1.0.1
@description    To Hide Tickers Bar in YouTube Live Chat
@author         CY Fung
@license MIT
@downloadURL https://update.greasyfork.org/scripts/473455/YouTube%3A%20Hide%20Tickers%20%28Live%20Chat%29.user.css
@updateURL https://update.greasyfork.org/scripts/473455/YouTube%3A%20Hide%20Tickers%20%28Live%20Chat%29.meta.css
==/UserStyle== */

@-moz-document url-prefix("https://www.youtube.com/live_chat") {
    /* Insert code here... */
    yt-live-chat-ticker-renderer.style-scope.yt-live-chat-renderer {
        display: none;
    }
}