[document web] focusable focused
++[panel]
++++[toggle button] name='details tag' expandable focusable posinset:1 setsize:2
++++++[static] name='details tag'
++[panel]
++++[toggle button] name='details tag open' expandable expanded focusable posinset:2 setsize:2
++++++[static] name='details tag open'
++++[paragraph]
++++++[static] name='The details tag with open specifies that the details should be visible (open) to the user.'