message: add display prop to Block
diff: @@ -9,6 +9,7 @@ const classifyBlockProps = classifier({
  true: 'border',
  false: 'border-0'
  }, null, value => `border-${value}`)),
  + display: value => `d-${value}`,
  fg: value => `text-${value}`,
  position: value => `position-${value}`,
  round: value => `rounded-${value}`,
  @@ -38,6 +39,7 @@ Block.propTypes = {
  position: PropTypes.oneOf(['absolute', 'fixed', 'relative']),
  round: PropTypes.number,
  shadow: PropTypes.oneOf([true, 'medium', 'large', 'extra-large']),
  + display: PropTypes.oneOf(['inline', 'inline-block']),
  ...map.propTypes
  }
  