Not getting vertical align in Bootstrap4 grid?

Question

Bootstrap

It seems that there is a container, even its height is greater than that of the line that is in it. Here, horizontal alignment never asked questions, but I struggle with vertical alignment and understand that I don’t catch something, help pliz, I’m tired)))

Answer 1

it looks like something like this
.row
.col-xl-6align-self-center
.col-xl-6align-self-center
/row