In Spree 3.1 Standard Themes (out of the box)
I tried to change background image.But not work. Perhaps the path is wrong. Help need.
Here what I did.
As I can see, your page doesn't use your styles at all. Are you sure the div tag has the class "spree-header". Because in your browser it only has id "spree-header" and nothing about the respective class. Try to replace it from
#spree-header. If there might be confrontation between styles, then you can always try the usage of
If the folder "vendors" is in the "app" folder, then you can use the relative path
url("../../../../../assets/images/NewBackGroundImage.png") as well