mozilla/bedrock — pull request #2219 by alexgibson (2014-08-11 12:28:49+00:00)
Title: Add newsletter thank you CSS animation

* Added CSS animation for newsletter "thank you" state.
* Fixed up some page-specific CSS styles for the updated newsletter form.

Might need a few more tweaks here and there on some pages, but from initial testing it seems to work pretty well of different pages / browsers / viewport sizes.