CSS Test: Non-Replaced Floating Left vs. Right

In the following test, the blue blocks should be on the given sides of the teal rectangle.

⇦ This blue block should be on the left.

⇨ This blue block should be on the right.

Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle. Teal rectangle.