Chat room description and tags may only be useful a first couple of times you come by a chat room. After that, they are just wasting space. To hide them from the view, you can install the following userscript:
// ==UserScript==
// @name Hide chat room description and tags
// @namespace maidcafe
// @match *://chat.stackexchange.com/*
// @match *://chat.stackoverflow.com/*
// @match *://chat.meta.stackexchange.com/*
// @version 1.0.4
// @grant none
// ==/UserScript==
function addGlobalStyle(css) {
style = document.createElement('style');
style.innerHTML = css;
document.head.appendChild(style);
}
addGlobalStyle('#roomdesc, #room-tags {display: none;}');
Or this Stylish script:
@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document domain("chat.stackexchange.com"), domain("chat.stackoverflow.com"), domain("chat.meta.stackexchange.com")
{
#roomdesc, #room-tags {display: none !important;}
}