message: Lines up overlay styling
diff: .Button
  &--overlay
  + // Fit 2-up on block hover
  + min-width (block_width / 2.25)
  + // Non-even vertical padding will visually center more accurately
  + padding (button-v-padding * 1.9) (button-h-padding * 1.5)
  + font-size font-size-base
  background-color colors-gray-translucent
  border none
  