Test passes if there is no red visible on the page.

AAAAAAAAA BBBBBBBBB CCCCCCCCC DDDDDDDDD EEEEEEEEE FFFFFFFFF GGGGGGGGG HHHHHHHHH IIIIIIIII JJJJJJJJJ KKKKKKKKK LLLLLLLLL
AAAAAAAAA BBBBBBBBB CCCCCCCCC DDDDDDDDD EEEEEEEEE FFFFFFFFF