I add background in row settings --> design options. On desktop they looks fine. But on mobile background image are not responsive. It does not match the background resolution for mobile devices. Can I fix it somehow?
You must provide a link because i cant see how you made your page. In my opinion the image is responsive because it must also adapt to the width and most important: the height!. When you resize your browser to a lower resolution your content is higher.
Like i wrote in the first sentence i must see a live example because maybe you found a bug or im right
Unfortunately for you I'm right, look at these two pictures and compare it to your main background image (http://teriston.pl/wp-content/uploads/2016/10/kosz2.jpg?id=2204) 1) http://nimb.ws/kmG26O - this is your page right now. Take a look that the Visual Composer must adjust the background image to the height of the ROW. 2) http://nimb.ws/qxZ3C9 - i removed (in firebug) the most of content. In both examples background picture is stretched to his full height.
If you want to see the full width of your background photos you have to prepare that it does not extend the full height because it must keep the proportions.
Comments
You must provide a link because i cant see how you made your page.
In my opinion the image is responsive because it must also adapt to the width and most important: the height!.
When you resize your browser to a lower resolution your content is higher.
Like i wrote in the first sentence i must see a live example because maybe you found a bug or im right
With Regards
Daniel
1) http://nimb.ws/kmG26O - this is your page right now. Take a look that the Visual Composer must adjust the background image to the height of the ROW.
2) http://nimb.ws/qxZ3C9 - i removed (in firebug) the most of content. In both examples background picture is stretched to his full height.
If you want to see the full width of your background photos you have to prepare that it does not extend the full height because it must keep the proportions.
With Regards
Daniel