  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.52.html:1:1]
 1 | <!DOCTYPE html>X</body><html id="x">
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.52.html:1:1]
 1 | <!DOCTYPE html>X</body><html id="x">
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.52.html:1:1]
 1 | <!DOCTYPE html>X</body><html id="x">
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Attribute
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.52.html:1:1]
 1 | <!DOCTYPE html>X</body><html id="x">
   :                              ^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.52.html:1:1]
 1 | <!DOCTYPE html>X</body><html id="x">
   :                ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests2_dat.52.html:1:1]
 1 | <!DOCTYPE html>X</body><html id="x">
   :                ^
   `----
