Thanks!

Is this the relevant code?

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

And presumably the bulleted list would also have to be done HTML? (Racks brain trying to remember things from the 90s :D then just Qwants it)

 <ul>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>