[auto layout auto width] There should be a green box below the same width as the blue box and no red.
[fixed layout auto width] There should be a green box below the same width as the blue box and no red.
[auto layout zero width] There should be a green box below the same width as the blue box and no red.
[fixed layout zero width] There should be a green box below the same width as the blue box and no red.