Revert "Merge branch 'jc/css-tweaks' into gh-pages"

This reverts commit 5a11e091fe33254507c7439ece3220c893fb89fe, reversing
changes made to 069d361f3ee739139bff9f1c1cdb841c97cbabac.
Merge pull request #27 from kissmetrics/percy/revert_css_tweaks

Revert "Merge branch 'jc/css-tweaks' into gh-pages"