Summary:
Refs T1048 - I'm pretty happy and happy to tell you
Savepoint CR
Everything's dummy right now. If you are testing locally, don't forget to edit the PHIDs. Or populate your own handles. Doesn't really matter.
I'm mainly sending it in for the CSS, not the messy PHP code. Ignore the `margin: auto`, that's just for looking nice.
Test Plan: UI Example » Hovercard
Reviewers: epriestley, chad
CC: aran, Korvin
Maniphest Tasks: T1048
Differential Revision: https://secure.phabricator.com/D5519
