presentational children
1. role=button +tabindex=0
4. role=checkbox tabindex=0
6. role=img with aria-label
7. role=menuitemcheckbox with aria-label
8. role=menuitemcheckbox with aria-label + tabindex="0"
9. role=meter with aria-label
10. role=menuitemradio with aria-label + tabindex="0"
11. role=option with aria-label + tabindex="0"
12. role=progressbar with aria-label
13. role=radio with aria-label
14. role=scrollbar with aria-label
15. role=separator with aria-label
16. role=slider with aria-label
17. role=switch with aria-label
18. role=tab with aria-label + tabindex="0"