The background of this paragraph should be initially green. The background of the paragraph just below should become white when you click ****here****.

The background of this paragraph should be initially green. It becomes white when you click on the link above. When you click ****here****, it becomes green again and the background of the paragraph below becomes white.

The background of this paragraph should be initially green. It becomes white when you click on the link above. When you click ****here****, the three paragraph have green background again.