Cleaned up height and shape on grids - needs resp for container - added nav, and foot fixes. added shadows

Summary: grid changes

Test Plan: N/A

Differential Revision: http://phabricator.ilyfa.cc/D1
Merge branch 'arcpatch-D1' into feature/0.1A-styles

* arcpatch-D1:
  Cleaned up height and shape on grids - needs resp for container - added nav, and foot fixes. added shadows