1. Explicit descendant combinator >>

    An explicit, non-whitespace spelling of the descendant combinator. `A >> B` is equivalent to `A B`.

  2. CSS3 tab-size

    Method of customizing the width of the tab character. Only effective using 'white-space: pre', 'white-space: pre-wrap', and 'white-space: break-spaces'.

  3. domtokenlist api: trims whitespace

  4. css property: white-space

  5. css property: white-space-collapse

  6. css property: white-space-collapse: break-spaces

  7. css property: white-space-collapse: collapse

  8. css property: white-space-collapse: preserve

  9. css property: white-space-collapse: preserve-breaks

  10. css property: white-space: break-spaces

  11. css property: white-space: normal

  12. css property: white-space: nowrap

  13. css property: white-space: pre

  14. css property: white-space: pre-line

  15. css property: white-space: pre-wrap

  16. css property: white-space: accepts shorthand values

  17. css property: white-space: on svg elements

  18. css property: white-space: support on `<textarea>`

  19. css selector: `:-moz-only-whitespace`

  20. css selector: `:empty`: matches elements with whitespace

  21. css text-space-collapse property

  22. microdata api