webcomponents/customelements.io — pull request #169 by pborreli (2014-05-05 23:06:47+00:00)
Title: Giving some life to the :heart: 

![heartbeat](https://cloud.githubusercontent.com/assets/77759/2884391/d631d8b6-d4a9-11e3-8b9a-9802f5b6b24d.gif)