Board Thread:Support Requests - Getting Technical/@comment-1807002-20150930004852

I simply started with Copy/Paste of this sites Navbox Templates (http://community.wikia.com/wiki/Template:Navbox) but I seem to have no hide/show button on my Navbox?

http://paradise-bay.wikia.com/wiki/Template:Navbox

http://paradise-bay.wikia.com/wiki/MediaWiki:Wikia.css

My three Questions:


 * How do I get the Hide/Show button on my Navbox?
 * How do I get rid of that black line to the right after each group?
 * How do I keep header/Title Bar as is, but remove the border radius' from the groups and sub groups headers?

Any help would be appreciated, Thank you in advance. 