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

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

  3. css property: position-area: self-inline-start

  4. css property: position-area: self-start

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

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

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

  8. css property: position-area: span-self-inline-start

  9. css property: position-area: span-self-start

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

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

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

  13. css property: position-try-fallbacks: self-inline-start

  14. css property: position-try-fallbacks: self-start

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

  16. css property: position-try-fallbacks: span-self-inline-start

  17. css property: position-try-fallbacks: span-self-start

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

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

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

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

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

  23. css property: position-try: self-inline-start

  24. css property: position-try: self-start

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

  26. css property: position-try: span-self-inline-start

  27. css property: position-try: span-self-start

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

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

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

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