def tabs(options = {}, &block)
      new_tabs = Tabs.new(self, options)
      capture(new_tabs, &block) if block_given?
      new_tabs.to_s
    end
def tabs(options = {}, &block)
      new_tabs = Tabs.new(self, options)
      capture(new_tabs, &block) if block_given?
      new_tabs.to_s
    end
Show Tabs
 options:
  index: show which tab default
  type: pills, tabs  default: tabs
  position: below, left, right direction of tab
  align: left, right. the alignment of tab, NOT AVAILABLE NOW
  inline: true ,false default: false
  stacked: true, false default: false
  content_options
    every option that can be accepted by tab content div