nd', 'rtl');
test_computed_value('flip-inline', 'position-area', 'x-start y-start', 'x-end y-start', 'rtl');
test_computed_value('flip-block', 'position-area', 'x-end y-start', 'x-start y-start', 'ltr', 'vertical-rl');
test_computed_value('flip-inline', 'position-area', 'x-end y-start', 'x-end y-end', 'ltr', 'vertical-rl');

test_computed_value('flip-inline', 'position-area', 'start end', 'start', 'rtl');
test_computed_value('flip-inline', 'position-area', 'start end', 'start', 'ltr', 'vertical-rl');
test_c