Responsive image scaling will proportionally scale the background image according to the width of the page. If the page is equal to or greater than 1000px wide the image is scaled to a maximum 1600px in width. If the page is between 701px and 999px wide the image is scaled to a maximum 1300px in width. If the page is less than or equal to 700px wide the image is scaled to a maximum 1000px in width.