@mixin hover {
  &:hover {
    @content;
  }
}

@mixin hover-focus {
  @include hover {
    @content;
  }
  &:focus {
    @content;
  }
}

@mixin plain-hover-focus {
  @include hover {
    @content;
  }
  &, &:focus {
    @content;
  }
}

@mixin hover-focus-active {
  @include hover {
    @content;
  }
  &:focus,
  &:active {
    @content;
  }
}