I’ve a problem when I use a page image header, and set on fluid… it works really good on web-site, but not working on mobile…is static and don’t have the parallax effect..
Usually the parallax effect isn’t desired on mobile – a little too flashy for such a small screen.
Depending on the aspect ratio of the image, it can look a little off on mobile because the aspect ratio of the header area changes as you reduce the size of the window.
You can try changing the background-size attribute on mobile, and see if you can find an value you like: