Hello, I am using the Twenty-Twelve theme (through a child theme). The site allows me to set a background image that looks really well on a desktop. However when using a mobile device the background image forces the main content of the website to crop to the left (apperantly to display the background), example: http://imageshack.com/a/img32/7882/uutb.jpg.
I am wondering if there is a piece of code that I could add to my child theme that would allow me to tell WordPress to forego the background image when viewing with a mobile device.
The website is http://www.groningengiants.nl and I'm using the latest version of wordpress.