baseball team subreddits dropdown, based on /r/music's menus

Based on this, I decided to redo the team subreddit menu, and make it fancier!

Live examples: ###/r/testbucket (appears just above content)

First:

Remove any existing team subreddits CSS (It will probably conflict with this)

Second: Add this to your community settings

Third: Add this to your css

###/r/baseball (appears on top of page)

First:

Remove any existing team subreddits CSS (It will probably conflict with this)

Second: Add this to your community settings

Third: Add this to your css