The new uniforms are in

#block-yui_3_17_2_1_1547605662308_11057 .sqs-gallery-block-grid .sqs-gallery-design-grid { margin-right: -3px; }
#block-yui_3_17_2_1_1547605662308_11057 .sqs-gallery-block-grid .sqs-gallery-design-grid-slide .margin-wrapper { margin-right: 3px; margin-bottom: 3px; }