This test requires the Ahem font, and tests should all display on a 5x2 grid of green
squares. These tests check the interaction of shape-inside with spans.
This test should display two 2x2 green squares, separated by a 1 unit space.
This test should display a 2x2 green square, and a 2x1 rectangle separated by a 1 unit space.
This test should display a 2x1 green rectangle, and a 2x2 square separated by a 1 unit space.