  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests24_dat.4.html:1:1]
 1 | <!DOCTYPE html>&NotSubset;
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests24_dat.4.html:1:1]
 1 | <!DOCTYPE html>&NotSubset;
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests24_dat.4.html:1:1]
 1 | <!DOCTYPE html>&NotSubset;
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests24_dat.4.html:1:1]
 1 | <!DOCTYPE html>&NotSubset;
   :                ^^^^^^^^^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests24_dat.4.html:1:1]
 1 | <!DOCTYPE html>&NotSubset;
   :                ^^^^^^^^^^^
   `----
