Mikio Plugin

https://github.com/nomadjimbob/mikioplugin/wiki/Collapse

Created a collapsible element. The element is required to have a id value which is referenced by a button using the buttons collapse-id attribute. Click me to toggle the view

<button collapse-id="the_item">Click me to toggle the view</button>
<collapse id="the_item">This is the hidden item!</collapse>

collapse-id: The collapse element ID to toggle

id: The ID referenced by the button