Moz Osx Font Smoothing

Utilities for controlling the font smoothing of an element.

Class	CSS Output
`antialiased`	`-webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;`
`subpixel-antialiased`	`-webkit-font-smoothing: auto; -moz-osx-font-smoothing: auto;`