@mixin add-link-styles($color, $hover: null, $active: null) {

@if type-of($color) == "list" {
  $active: nth($color, 3);
  $hover: nth($color, 2);
  $color: nth($color, 1);
}

&:link {
  color: color($color);
}
&:visited {
  color: color($color);
}
&:hover {
  color: color($hover);
}
&:active {
  color: color($active);
}

}