My banner does not scale down. For the smartphone and ipad resolutions it looks good. On a very big resolution (1980 width) it also looks good, but in between the image is to big and won't scale down. The width of the page is fine but because the width of the image is larger it's not in the center visually! Please have a look at http://blue-office-battery.webflow.com/ to see what I mean. What do I need to do to correct this?