Forum:Help with collapsing a template

Hello everybody! I wanted to see if anybody can help make this template autocollapsible down to the arrow, so that if you click on it, it will show the message. Link: http://superheronation.wikia.com/wiki/Template:TimlineRequestInfo

Code: <   "Please help Superhero Nation wiki by citing the importance of this event."

I would greatly appreciate the help! Thanks.

~MattShadow