suggested tweaks
Merge branch 'master' of https://github.com/shaefner-usgs/hazdev-template
update layout: full-bleed header/footer; content spacing
set :root font-size and remove em values
shift logo to align w/ nav
optimize selectors
add subtle nav transitions
trim whitespace btwn links
Remove unused css.
Merge branch 'shaefner-usgs-master'