@mixin alternating-rows-and-columns($even-row-color, $odd-row-color, $dark-intersection, $header-color: white, $footer-color: white) { th { background-color: $header-color; &.even, &:nth-child(2n) { background-color: $header-color - $dark-intersection; } } tr { &.odd, &:nth-child(2n+1) { td { background-color: $odd-row-color; &.even, &:nth-child(2n) { background-color: $odd-row-color - $dark-intersection; } } } } tr.even { td { background-color: $even-row-color; &.even, &:nth-child(2n) { background-color: $even-row-color - $dark-intersection; } } } tfoot { th, td { background-color: $footer-color; &.even, &:nth-child(2n) { background-color: $footer-color - $dark-intersection; } } } }