xs
sm
md
lg
xl
xxl
columns - vertically - align
align-items-start
Column #1
Column #2
Column #3
align-items-center
Column #1
Column #2
Column #3
align-items-end
Column #1
Column #2
Column #3
align-self-start / align-self-center / align-self-end
Column #1 align-self-start
Column #2 align-self-center
Column #3 align-self-end