#nav ul li a#hair_care:hover { background-position:center; }
			#nav ul li a#hair_care:active { background-position:bottom; }
			#nav ul li a#acne:hover { background-position:center; }
			#nav ul li a#acne:active { background-position:bottom; }
			#nav ul li a#skin_care:hover { background-position:center; }
			#nav ul li a#skin_care:active { background-position:bottom; }