Test overwriting justify-content and align-content works as expected On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS getComputedStyle(childOfDefaultParent, '').getPropertyValue('justify-content') is "unsafe flex-end" PASS getComputedStyle(childOfDefaultParent, '').getPropertyValue('align-content') is "safe center" PASS getComputedStyle(childOfParentId, '').getPropertyValue('justify-content') is "space-between" PASS getComputedStyle(childOfParentId, '').getPropertyValue('align-content') is "space-around" PASS successfullyParsed is true TEST COMPLETE