$padding = 1rem
.p0
  padding: 0
.px0
  padding-left: 0
  padding-right: 0
.py0
  padding-top: 0
  padding-bottom: 0
.p1
  padding: $padding
.px1
  padding-left: $padding
  padding-right: $padding
.py1
  padding-top: $padding
  padding-bottom: $padding
.p2
  padding: ($padding * 2)
.px2
  padding-left: ($padding * 2)
  padding-right: ($padding * 2)
.py2
  padding-top: ($padding * 2)
  padding-bottom: ($padding * 2)