  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.55.html:1:1]
 1 | <!DOCTYPE html>X</html> 
   : ^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.55.html:1:1]
 1 | <!DOCTYPE html>X</html> 
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.55.html:1:1]
 1 | <!DOCTYPE html>X</html> 
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.55.html:1:1]
 1 | <!DOCTYPE html>X</html> 
   :                ^^^^^^^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.55.html:1:1]
 1 | <!DOCTYPE html>X</html> 
   :                ^^^^^^^^^
   `----
