message: Removes slashes and normalizes padding
diff: text-align left
  color colors-gray-text
  - &:before
  - display inline-block
  - content '/'
  - width 0.33em
  - margin-right 0.33em
  - text-align right
  -
  &:hover
  color colors-gray-hover
  &--secondary
  color colors-gray-light
  - padding (button-v-padding / 3) (button-h-padding / 2)
  + padding (button-v-padding / 3) button-h-padding
  > span
  font-size font-size-sm
  