message: Learn to format
diff: padding-top unit
  position relative
  - .flex-container:before, .flex-container:after
  + .flex-container:before
  + .flex-container:after
  display none
  .channel-empty
  padding-bottom 0
  .channel--drop-zone
  - -webkit-transform translateY(-1000%)
  - -ms-transform translateY(-1000%)
  transform translateY(-1000%)
  background-color rgba(255,255,255, 0.96)
  z-index lightbox_z
  &.is-droppable
  - -webkit-transform translateY(0)
  - -ms-transform translateY(0)
  transform translateY(0)
  .abs-fill, &.abs-fill
  