[document web]
++[section] label-for=[combo box,combo box]
++++[static] name='State'
++[combo box] name='State' expandable expanded labelled-by=[section] haspopup:listbox
++++[entry] selectable-text controller-for=[list box]
++[list box] controlled-by=[entry]
++++[list item] name='Alabama' selectable
++++[list item] name='Alaska' selectable selected
++[combo box] name='State' expandable expanded labelled-by=[section] haspopup:listbox
++++[entry] selectable-text controller-for=[list box]
++[list box] controlled-by=[entry]
++++[list item] name='Alabama' selectable
++++[list item] name='Alaska' selectable