  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   :                ^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   :                ^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   :                   ^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   :                   ^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   :                          ^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.100.html:1:1]
 1 | <!doctype html><a><b></a><bgsound>
   :                          ^^^^^^^^^
   `----
