class Playbook::PbLineGraph::LineGraph

def vertical_align_props
  if vertical_align
    if object.vertical_align
      original_result = super
      class_to_remove = "vertical_align_#{object.vertical_align}"
      modified_result = original_result.gsub(class_to_remove, "").strip
      modified_result.empty? ? nil : modified_result
    else
      super
    end
  else
    super
  end
end