Background Image Cover Full Page. To make sure that the image covers the whole screen you must also apply height. WordPress background images come in all forms.
At the very bottom of this pop-up is an option Fill Effects. To make sure that the image covers the whole screen you must also apply height. We make a HTML file and save it with a name image_backgroundhtml.
The cover value tells the browser to automatically and proportionally scale the background images width and height so that they are always equal to or greater than the viewports widthheight.
Here are some examples of bigger corporation websites using full screen background images. Fills entire page with image no white space. The goal is to have an image cover the full screen of a browser window at all times with no whitespaces or margins. Front is 100 the size of header.