message: Removes side borders entirely
diff: width 100%
  border-width 1px
  padding button-padding
  - border-right-color transparent !important
  - border-bottom-color transparent !important
  - border-left-color transparent !important
  + border-right-width 0 !important
  + border-bottom-width 0 !important
  + border-left-width 0 !important
  border-radius 0
  &:hover
  