{$device}->columnGap ) ) { $css[ $device ]['column-gap'] = $this->{$device}->columnGap . 'px'; } if ( !empty( $this->{$device}->display ) ) { $css[ $device ]['display'] = $this->{$device}->display; } if ( !empty( $this->{$device}->flex ) ) { $css[ $device ]['flex'] = $this->{$device}->flex ?? $this->flex; } if ( !empty( $this->{$device} ) && !empty( $this->{$device}->rowGap ) ) { $css[ $device ]['row-gap'] = $this->{$device}->rowGap . 'px'; } if ( !empty( $this->{$device}->alignSelf ) ) { $css[ $device ]['align-self'] = $this->{$device}->alignSelf; } } return $css; } }