Adrianna Calvo. If my HTML page consists only of a then the height of the background image would just be the height of oneHow do I make the height of my background image 100% of the screen which the user is using to view the webpage?By default, even html and body are only as big as the content they hold, but never more than the width/height of the windows. Background image centered and 100% in all browsers. Astronomy Bright. Here is an example that uses a background image for the body of a page and which sets the size to 100% so that it will always stretch to fit the screen. To add a background image on an HTML element, you can use the styleattribute: You can also specify the background image in the