ArtJH

function tap(e){
		let el = $(e).children("label");
		$(el).addClass('active');
		var activeWidth = $(el).innerWidth();
		var itemPos = $(el).position();
		$(".selector").css({
			"top":itemPos.top - 7 + "px", 
			"left":itemPos.left - 15 + "px", 
			"width": activeWidth + 30 + "px"
		});
	}