1. css property: border-block-start

2. css property: border-block-start-color

3. css property: border-block-start-style

4. css property: border-block-start-style: dashed

5. css property: border-block-start-style: dotted

6. css property: border-block-start-style: double

7. css property: border-block-start-style: groove

8. css property: border-block-start-style: hidden

9. css property: border-block-start-style: inset

10. css property: border-block-start-style: none

11. css property: border-block-start-style: outset

12. css property: border-block-start-style: ridge

13. css property: border-block-start-style: solid

14. css property: border-block-start-width

15. css property: border-block-start-width: medium

16. css property: border-block-start-width: thick

17. css property: border-block-start-width: thin

18. css property: border-block-start: currentcolor

19. css property: border-block-start: dashed

20. css property: border-block-start: dotted

21. css property: border-block-start: double

22. css property: border-block-start: groove

23. css property: border-block-start: hidden

24. css property: border-block-start: inset

25. css property: border-block-start: medium

26. css property: border-block-start: none

27. css property: border-block-start: outset

28. css property: border-block-start: ridge

29. css property: border-block-start: solid

30. css property: border-block-start: thick

31. css property: border-block-start: thin

32. css property: border-block-start: transparent

33. css property: corner-block-start-shape

34. css property: corner-block-start-shape: bevel

35. css property: corner-block-start-shape: notch

36. css property: corner-block-start-shape: round

37. css property: corner-block-start-shape: scoop

38. css property: corner-block-start-shape: square

39. css property: corner-block-start-shape: squircle

40. css property: inset-block-start

41. css property: inset-block-start: `anchor()`

42. css property: inset-block-start: `anchor-size()`

43. css property: inset-block-start: auto

44. css property: margin-block-start

45. css property: margin-block-start: auto

46. css property: margin-trim: block-start

47. css property: position-area: block-start

48. css property: position-try-fallbacks: block-start

49. css property: position-try: block-start

50. css selector: `::scroll-button()`: block-start