  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests18_dat.20.html:1:1]
 1 | <!doctype html><frameset></frameset></html><plaintext></plaintext>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests18_dat.20.html:1:1]
 1 | <!doctype html><frameset></frameset></html><plaintext></plaintext>
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests18_dat.20.html:1:1]
 1 | <!doctype html><frameset></frameset></html><plaintext></plaintext>
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests18_dat.20.html:1:1]
 1 | <!doctype html><frameset></frameset></html><plaintext></plaintext>
   :                ^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests18_dat.20.html:1:1]
 1 | <!doctype html><frameset></frameset></html><plaintext></plaintext>
   :                ^^^^^^^^^^^^^^^^^^^^^
   `----
