It seems like I always run into a problem with the background image to a div. What is the correct way of doing this without having problems? I seem to run into problems at times when I don't use background-image for a while and then when I try to use it the image does not show up. Please let me know how I can have a background image to a div and that it is 100% of the width of the screen and 100% of the height of the screen. Thanks!