This paragraph has text-indent set to a value of 0. This paragraph has text-indent set to a value of 0. This paragraph has text-indent set to a value of 0. 

This paragraph has text-indent set to a value of 1/2 inch. This paragraph has text-indent set to a value of 1/2 inch. This paragraph has text-indent set to a value of 1/2 inch. 

This paragraph has text-indent set to a value of -1/2 inch. This paragraph has text-indent set to a value of -1/2 inch. This paragraph has text-indent set to a value of 1/2 inch.