MediaWiki, elementos colapsables

<div class="toccolours mw-collapsible mw-collapsed" style="width:800px">
This text is not collapsible; but the next is collapsible and hidden by default:
<div class="mw-collapsible-content">{{Lorem}}</div>
</div>

Esto se ve así:

This text is not collapsible; but the next is collapsible and hidden by default:

Bla bla bla...