message: Avoid hardcoding
diff: @@ -43,10 +43,10 @@ module.exports = class AddBlockView extends Backbone.View
  checkInput: ->
  if (@dom.input.val().trim()) isnt ''
  - @$el.addClass 'AddBlock--typing'
  + @$el.addClass "#{@className}--typing"
  @dom.button.removeAttr 'disabled'
  else
  - @$el.removeClass 'AddBlock--typing'
  + @$el.removeClass "#{@className}--typing"
  @dom.button.attr 'disabled', true
  choose: (e) ->
  