This test checks markers, especially the behaviour of block being broken over pages.

page 0.00 1.00 1: 1.00 1.00 2.00 2: 1.00 2.00 3.00 3: 1.00 3.00 4.00 4: This is a special case. It must take two lines. It must take two lines. 1.00 4.00 5.00 5: 1.00 5.00 6.00 6: 1.00