1. CSS Flexible Box Layout Module

    Method of positioning elements in horizontal or vertical stacks. Support includes all properties prefixed with `flex`, as well as `display: flex`, `display: inline-flex`, `align-content`, `align-items`, `align-self`, `justify-content` and `order`.

  2. css property: vertical-align

  3. css property: vertical-align: alphabetic

  4. css property: vertical-align: baseline

  5. css property: vertical-align: bottom

  6. css property: vertical-align: center

  7. css property: vertical-align: central

  8. css property: vertical-align: first

  9. css property: vertical-align: hanging

  10. css property: vertical-align: ideographic

  11. css property: vertical-align: last

  12. css property: vertical-align: mathematical

  13. css property: vertical-align: middle

  14. css property: vertical-align: sub

  15. css property: vertical-align: super

  16. css property: vertical-align: text-bottom

  17. css property: vertical-align: text-top

  18. css property: vertical-align: top