Since the CSS for this is generated with LESS, and we're using the base functions from the UNL_WDNTemplates project, you'll need to create a symlink from styles/less/ to that project's LESS mixin:
ln -s /Library/WebServer/Documents/wdn/templates_3.1/less template_less
smeranda/UNL_Splash
Redevlopment of UNL external page to merge mobile and desktop versions into a responsive approach.