Background images and CSS on mobile screen

Hi there we are starting to use Adaptive theme more and more. Thanks btw ! Awesome! But for some reason the borders I create in global.styles.css do not seem to display on my android Nexus using chrome? Nor do background images which are fine in Firefox and display fine on the desktop view. Any help on this? I googled to no avail, thanks in advance.

www.drupalcontractors.com is the site