x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.15.html:1:1]
 1 | </keygen>A
   : ^^^^^^^^^^
   `----

  x Child

  x Element

  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.15.html:1:1]
 1 | </keygen>A
   :          ^
   `----

  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests25_dat.15.html:1:1]
 1 | </keygen>A
   :          ^
   `----