But now, if you want to have only the arrows, you just have to set the rest the values to the background color. If you have a background image, and you want the track color and all to really be transparent so that you can see the image, you can do that ( remember that it will only work in IE, and it's not w3c compatible ; it will also work only for content which is displayed in div or iframes. it cannot work for the main page ( you cannot apply the style to the body tag ) :