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