Use the .align-self-*-end classes to align a flex item at the end in a flex container on different screens.
Resize the browser window to see the effect. Note: align-self-stretch is default.
.align-self-end:
.align-self-end
.align-self-sm-end:
.align-self-sm-end
.align-self-md-end:
.align-self-md-end
.align-self-lg-end:
.align-self-lg-end
.align-self-xl-end:
.align-self-xl-end