Use descendant invalidation sets for :in-range and :out-of-range pseudo classes.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

PASS getComputedStyle(input).backgroundColor is red
PASS getComputedStyle(descendant).backgroundColor is transparent
PASS internals.updateStyleAndReturnAffectedElementCount() is 2
PASS getComputedStyle(input).backgroundColor is green
PASS getComputedStyle(descendant).backgroundColor is green
PASS successfullyParsed is true

TEST COMPLETE