message: Includes an HTML class for disabling font-size media query on root element
diff: +.HTML
  + &--font-size-invariant
  + // 500px as defined in `layout/index.styl`
  + @media (max-width: 500px)
  + font-size font-size-root
  +
  .Page
  margin topbar_h auto
  padding unit
  