$visibleStates: (hide, show);

@each $state in $visibleStates {
    @each $screen in $screenSizes {
        @if $state == hide {
            .--#{$state}-#{$screen} {
                @include breakpoint($screen) {
                    @include hideEl(important);
                }
            }
        }
        @if $state == show {
            .--#{$state}-#{$screen} {
                @include breakpoint($screen, null, true) {
                    @include hideEl(important);
                }
            }
        }
    }
}