[document web] tag:#document
++[section] tag:body
++++[document frame] name='Text descendants' tag:svg
++++++[section] tag:text
++++++++[section] tag:a
++++++++++[static] name='focusable'
++++++[section] tag:text
++++++++[static] name='not focusable'
++++[document frame] name='Not text descendants' tag:svg
++++++[panel] tag:a