FlexBox align-items DEMO

flex-start

Child 1
Child 2
Child 3
Child 4

flex-end

Child 1
Child 2
Child 3
Child 4

center

Child 1
Child 2
Child 3
Child 4

baseline

Child 1
Child 2
Child 3
Child 4

stretch

Child 1
Child 2
Child 3
Child 4