message: Uses ems for typography spacing
diff: -json('./font.json')
  -json('./line.json')
  -
  .Type
  // Reset any styles that might be inherited from the base object
  // This property can be removed once the existing UI is retired
  @@ -20,7 +17,7 @@ h6.Type
  p.Type
  pre.Type
  display block
  - collapsed-margins(unit)
  + collapsed-margins(1em)
  h1.Type
  h2.Type
  @@ -68,10 +65,10 @@ code.Type
  border-radius 2px
  pre.Type
  - padding (unit / 4) (unit / 2)
  + padding (1em / 4) (1em / 2)
  line-height line-height-tall
  white-space pre
  overflow-x auto
  code.Type
  - padding (unit / 6) (unit / 4)
  + padding (1em / 6) (1em / 4)
  