  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.1.html:1:1]
 1 | <math><![CDATA[foo]]>
   : ^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.1.html:1:1]
 1 | <math><![CDATA[foo]]>
   : ^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.1.html:1:1]
 1 | <math><![CDATA[foo]]>
   : ^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.1.html:1:1]
 1 | <math><![CDATA[foo]]>
   :       ^^^^^^^^^^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.1.html:1:1]
 1 | <math><![CDATA[foo]]>
   :       ^^^^^^^^^^^^
   `----
