RootNode [0-74]
  HeaderNode [0-16]
    AnchorLinkNode [0-11] 'Hello World'
  SimpleNode [16-20] HRule
  SimpleNode [20-24] HRule
  ParaNode [25-36]
    SuperNode [25-36]
      TextNode [25-36] 'Hello World'
  SimpleNode [37-41] HRule
  SimpleNode [41-45] HRule
  SimpleNode [45-49] HRule
  ParaNode [50-61]
    SuperNode [50-61]
      TextNode [50-61] 'Hello World'
  SimpleNode [62-66] HRule
  SimpleNode [66-70] HRule
  SimpleNode [70-74] HRule
