In all of the examples, you should be able to see blue and green rectangles that spill way out of their containing blocks. They should be 100px tall and not overlap one another at all. They should be stacked vertically.
You should see blue and green rectangles below.
You should see blue and
green rectangles below.
You should see blue and green rectangles above.
You should see blue and green rectangles above.
You should see blue above and green below.
You should see blue above and green below.
The next examples should have blue and green rectangles that snugly fit without spilling out.
You should see blue and green rectangles below.
You should see blue and green rectangles below.
You should see blue and green rectangles above.
You should see blue and green rectangles above.
You should see blue above and green below.
You should see blue above and green below.