message: Refinements to .Page; some notes to self
diff: .HTML
  &--font-size-invariant
  // 500px as defined in `layout/index.styl`
  + // TODO: Remove the need for this
  @media (max-width: 500px)
  font-size font-size-root
  @@ -15,6 +16,7 @@ constrain()
  center(block_width_mar * i)
  @media (max-width: (block_width_mar * 3) + unit)
  + // TODO: I'm not positive this does anything...
  center(90%)
  .Constrain
  @@ -24,10 +26,14 @@ constrain()
  max-width (block_width_mar * 2)
  .Page
  - @extends .Constrain
  + constrain()
  margin topbar_h auto
  padding 1em 0
  + &--narrow
  + max-width (block_width_mar * 2)
  + padding 1em
  +
  .Container
  width 100%
  display flex
  