[scroll-timeline-range-animation.html]
expected: TIMEOUT
[Animation with ranges [initial, initial\]]
expected: FAIL
[Animation with ranges [0%, 100%\]]
expected: FAIL
[Animation with ranges [10%, 100%\]]
expected: FAIL
[Animation with ranges [0%, 50%\]]
expected: FAIL
[Animation with ranges [10%, 50%\]]
expected: FAIL
[Animation with ranges [150px, 75em\]]
expected: FAIL
[Animation with ranges [calc(1% + 135px), calc(70em + 50px)\]]
expected: FAIL
[Animation with ranges [calc(1% + 135px), calc(70em + 50px)\] (scoped)]
expected: TIMEOUT