HTML - Spacing margin

Margin, marginX, marginY

Margin - xl

Margin x axis - pf-u-mx-xl

Margin y axis - pf-u-my-xl

Margin top, margin right, margin bottom, margin left

Margin-top - xl

Margin-right - xl

Margin-bottom - xl

Margin-left - xl

Responsive margin

Margin-top - xl

Margin-top - xl on-sm

Margin-top - xl on-md

Margin-top - xl on-lg

Margin-top - xl on-xl