User:SunWine

Collapsible Button
Add class="wds-button mw-customtoggle-scripts", class="mw-collapsible mw-collapsed" and id="mw-customcollapsible-scripts" to make the button collapsible.

Collapsible button This is a collapsible content

Code for a button with a solid black border:

You can also do this with a collapsible button.

Collapsible button This is collapsible content