  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   :                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   :                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   :                         ^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   :                         ^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   :                                           ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.41.html:1:1]
 1 | <!doctype html><address><button></address>a
   :                                           ^
   `----
