[CSSPseudoElement-scroll-button.html]
  [pseudo() returns a CSSPseudoElement for ::scroll-button()]
    expected: FAIL

  [Each direction refers to its own scroll button]
    expected: FAIL

  [A physical direction returns the CSSPseudoElement of the logical direction it maps to]
    expected: FAIL

  [Physical directions map according to the writing mode]
    expected: FAIL

  [The direction is ASCII case-insensitive]
    expected: FAIL

  [selectorText of ::scroll-button() includes the logical direction]
    expected: FAIL

  [selectorText of ::scroll-button() with a physical direction is the logical direction it maps to]
    expected: FAIL

  [selectorText of ::scroll-button() with a physical direction depends on the writing mode]
    expected: FAIL

  [selectorText of ::scroll-button() with a physical direction depends on the direction]
    expected: FAIL

  [pseudo() returns null for ::scroll-button(*)]
    expected: FAIL

  [Pseudo-elements don't have scroll buttons]
    expected: FAIL

  [pseudo() returns a CSSPseudoElement for ::scroll-button() of a disconnected element]
    expected: FAIL