[local-attr-substitution.html]
  [var() in attribute value substitutes locally]
    expected: FAIL

  [var() in attribute value substitutes locally, argument]
    expected: FAIL

  [var() in attribute value substitutes locally, typed]
    expected: FAIL

  [attr() fallback substitutes locally]
    expected: FAIL

  [attr() cycle through local]
    expected: FAIL

  [attr() cycle through fallback in local]
    expected: FAIL

  [attr() cycle through function]
    expected: FAIL