Why is border of graphics transparent

		var progressBar = new PIXI.Graphics();
		progressBar.lineStyle(1,0xFFFFFF);
		progressBar.beginFill(0x658d7d,1);
		progressBar.drawRect(0,0,1060,12);
		progressBar.endFill();

I want to draw a white border of rect,but I don't understand why the border is transparent.