* { width: $tile_width; margin: $vertical_spacing $half_horizontal_spacing 0; align-self: $settings[align_self]; } $list_selector > *:nth-child({$column_number}n) { margin-right: 0 } $list_selector > *:nth-child({$column_number}n+1) { margin-left: 0 } $list_selector > *:nth-child(-n+{$column_number}) { margin-top: 0; } CSS;