x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.13.html:1:1]
 1 | <button><button>
   : ^^^^^^^^^^^^^^^^
   `----

  x Child

  x Element

  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.13.html:1:1]
 1 | <button><button>
   : ^^^^^^^^
   `----

  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.13.html:1:1]
 1 | <button><button>
   : ^^^^^^^^
   `----

  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.13.html:1:1]
 1 | <button><button>
   :         ^^^^^^^^
   `----

  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.13.html:1:1]
 1 | <button><button>
   :         ^^^^^^^^
   `----