Harness status: OK Found 17 tests 17 Pass Pass Should be known: '(prefers-reduced-transparency)' Pass Should be known: '(prefers-reduced-transparency: no-preference)' Pass Should be known: '(prefers-reduced-transparency: reduce)' Pass Should be parseable: '(prefers-reduced-transparency: 0)' Pass Should be unknown: '(prefers-reduced-transparency: 0)' Pass Should be parseable: '(prefers-reduced-transparency: none)' Pass Should be unknown: '(prefers-reduced-transparency: none)' Pass Should be parseable: '(prefers-reduced-transparency: 10px)' Pass Should be unknown: '(prefers-reduced-transparency: 10px)' Pass Should be parseable: '(prefers-reduced-transparency: no-preference reduce)' Pass Should be unknown: '(prefers-reduced-transparency: no-preference reduce)' Pass Should be parseable: '(prefers-reduced-transparency: reduced)' Pass Should be unknown: '(prefers-reduced-transparency: reduced)' Pass Should be parseable: '(prefers-reduced-transparency: no-preference/reduce)' Pass Should be unknown: '(prefers-reduced-transparency: no-preference/reduce)' Pass Check that no-preference evaluates to false in the boolean context Pass Check that invalid evaluates to false