  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   :       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   :       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Attribute
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   :                       ^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   :                                            ^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests20_dat.57.html:1:1]
 1 | <math><annotation-xml encoding="text/html"><div>
   :                                            ^^^^^
   `----
