  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   :                ^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   :                ^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   :                        ^^^^^^^^^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.14.html:1:1]
 1 | <!DOCTYPE html><keygen>A</keygen>B
   :                        ^^^^^^^^^^^
   `----
