add styles for the user guide banner
add styles for the user guide banner

ktbartholomew/nexus-control,meker12/nexus-control,rackerlabs/nexus-control,meker12/nexus-control,rackerlabs/nexus-control,rackerlabs/nexus-control,ktbartholomew/nexus-control,smashwilson/nexus-control,smashwilson/nexus-control,meker12/nexus-control,ktbartholomew/nexus-control