Insert a style element into a shadow tree affecting the host. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS getComputedStyle(host2).color is "rgb(255, 0, 0)" PASS internals.updateStyleAndReturnAffectedElementCount() is 2 PASS getComputedStyle(host2).color is "rgb(0, 128, 0)" PASS successfullyParsed is true TEST COMPLETE