Restructuring all CSS so that class gets added to the button instead of the wrapper element.
Delete this maybe?
Revert "Changing some + - stuff."

This reverts commit deef857df89e68a113f98685bf3b263b48ea1532.

Conflicts:
	css/s.css
	css/scss/partials/_invert.scss
	css/scss/partials/_plus-minus-b.scss
	css/scss/partials/_plus-minus.scss
Tweaking styles for markup. Removing burger tilt arrow.
Merge branch 'master' into gh-pages