1. css property: align-self: supported in flex layout: `start` and `end`

2. css property: position-area: self-block-end

3. css property: position-area: self-end

4. css property: position-area: self-inline-end

5. css property: position-area: self-x-end

6. css property: position-area: self-y-end

7. css property: position-area: span-self-block-end

8. css property: position-area: span-self-end

9. css property: position-area: span-self-inline-end

10. css property: position-area: span-self-x-end

11. css property: position-area: span-self-y-end

12. css property: position-try-fallbacks: self-block-end

13. css property: position-try-fallbacks: self-end

14. css property: position-try-fallbacks: self-inline-end

15. css property: position-try-fallbacks: span-self-block-end

16. css property: position-try-fallbacks: span-self-end

17. css property: position-try-fallbacks: span-self-inline-end

18. css property: position-try-fallbacks: span-x-self-end

19. css property: position-try-fallbacks: span-y-self-end

20. css property: position-try-fallbacks: x-self-end

21. css property: position-try-fallbacks: y-self-end

22. css property: position-try: self-block-end

23. css property: position-try: self-end

24. css property: position-try: self-inline-end

25. css property: position-try: span-self-block-end

26. css property: position-try: span-self-end

27. css property: position-try: span-self-inline-end

28. css property: position-try: span-x-self-end

29. css property: position-try: span-y-self-end

30. css property: position-try: x-self-end

31. css property: position-try: y-self-end