Update fixed version of history in site. [ci skip]
Bump :gem: version to 2.0.0.alpha.2 and release.
Release 2.0.0.alpha.2
Move vendor prefixed properties before the unprefixed ones.
Use the shorthand font property when possible.
Be explicit with the `background` property.
Remove units from zero.
Use `font-weight: 700` consistently.
Remove duplicate property.
Add fallback colors.
Add missing vendor prefixed properties.
Simplify selectors.