Board Thread:Support Requests - Getting Technical/@comment-4146635-20130311030923/@comment-4674838-20130311032217

Hi, I would recommend using class="mw-collapsible mw-collapsed" instead of  class="collapsible collapsed" for your collapsing.
 * class="mw-collapsible mw-collapsed" is supported by default in the MediaWiki software &mdash; see Help:Collapsing for more information.
 * class="collapsible collapsed" works with an outdated collapse code that requires you to manually install some JavaScript on your wiki in order to use it. The JavaScript is at w:c:dev:ShowHide &mdash; although it works, I would recommend not to use this option.