@mixin font-smoothing-antialiased {
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
}

@mixin font-smoothing-subpixel {
    -moz-osx-font-smoothing: auto;
    -webkit-font-smoothing: subpixel-antialiased;
}

@mixin sa-not-selectable {
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}