  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   : ^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   :                ^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   :                ^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Attribute
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   :                                  ^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   :                      ^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.51.html:1:1]
 1 | <!DOCTYPE html><html><body><html id=x>
   :                      ^^^^^^^^^^^^^^^^^
   `----
