  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   :                ^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   :                ^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   :                     ^^^^^^^^^^^^^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests21_dat.12.html:1:1]
 1 | <!DOCTYPE html><svg><![CDATA[foo]]]>
   :                     ^^^^^^^^^^^^^^^
   `----
