1. focusin & focusout events

    The `focusin` and `focusout` events fire just before the element gains or loses focus, and they bubble. By contrast, the `focus` and `blur` events fire after the focus has shifted, and don't bubble.

  2. gestureevent api: shiftkey

  3. keyboardevent api: getmodifierstate: `"shift"` as `key` parameter

  4. keyboardevent api: shiftkey

  5. layoutshift api

  6. layoutshiftattribution api

  7. layoutshiftattribution api: currentrect

  8. layoutshiftattribution api: node

  9. layoutshiftattribution api: previousrect

  10. layoutshiftattribution api: tojson

  11. layoutshift api: hadrecentinput

  12. layoutshift api: lastinputtime

  13. layoutshift api: sources

  14. layoutshift api: tojson

  15. layoutshift api: value

  16. mouseevent api: shiftkey

  17. touchevent api: shiftkey

  18. css property: baseline-shift

  19. css property: baseline-shift: baseline

  20. css property: baseline-shift: bottom

  21. css property: baseline-shift: center

  22. css property: baseline-shift: sub

  23. css property: baseline-shift: super

  24. css property: baseline-shift: top

  25. css property: math-shift

  26. css property: math-shift: compact

  27. css property: math-shift: normal

  28. javascript built-in: array: shift

  29. javascript built-in: array: unshift

  30. javascript operator: bitwise left shift (`a << b`)

  31. javascript operator: left shift assignment (`x <<= y`)

  32. javascript operator: bitwise right shift (`a >> b`)

  33. javascript operator: right shift assignment (`x >>= y`)

  34. javascript operator: bitwise unsigned right shift (`a >>> b`)

  35. javascript operator: unsigned right shift assignment (`x >>>= y`)

  36. elements: mmultiscripts: subscriptshift

  37. elements: mmultiscripts: superscriptshift

  38. elements: msubsup: subscriptshift

  39. elements: msubsup: superscriptshift

  40. elements: msub: subscriptshift

  41. elements: msup: superscriptshift

  42. global_attributes: baseline-shift