@define-mixin font-smoothing $value: antialiased
{
    @if $value == antialiased
    {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    @else
    {
        -webkit-font-smoothing: subpixel-antialiased;
        -moz-osx-font-smoothing: auto;
    }
}