Layers transition correctly

This time it handles scrolling. No need for scroll top.


![layers-with-scroll](https://cloud.githubusercontent.com/assets/814861/5318024/588c795a-7c94-11e4-955d-e726e5096061.gif)

i find this interesting, i do. i like the idea of a class that almst does nuthing until you throw a theme on it. could even be [data="traditiional"] checked in the css so there 's less config,
but i i'm super for skeleton components that have all that's needed but aare nearly useless with some additave styles to bring life too them. and alway keeping these separate.



talking point:
would it be good just to have a bare-styled version of all our components and a theme dir (themes/waldorf/pagination.css) so we don't end up with a bunch of weird "one time hacks" that eventually end upon the christmas card list?

it would also require:

* Guidelines (conscientiously lenient)
* Regular global conversations (maybe even on phones or just slack tempchans. Google Hangouts was not designed for 600 people on 306 baud modems trying to talk at once
* Dedication. From everyone.

@lonelyplanet/lponline