Description
Controls the application of anti-aliasing when fonts are rendered.
SCSS Usage
@include font-smoothing($value: on)
  Where $value can be on or off, defaults to on.
And so, in SCSS:
p.foo {
  @include font-smoothing(on);
}
p.bar {
  @include font-smoothing(off);
}
  Output
.demo-font-smoothing-on {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
}
.demo-font-smoothing-off {
  -moz-osx-font-smoothing: auto;
  -webkit-font-smoothing: subpixel-antialiased;
}
  Demo
Using the above .demo-font-smoothing-on and .demo-font-smoothing-off classes above:
<div class="bg-banner background-fill py-gutter text-inverse mt-gutter">
  <p class="f-h1 demo-font-smoothing-on">Font smoothing: on</p>
  <p class="f-h1 demo-font-smoothing-off">Font smoothing: off</p>
</div>