CSS Flexbox: Auto margins on column flex direction with wrap

The test passes if the flex items are properly centered in each column

centeredWithMargins

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf

centeredWithAlignSelf