Campbell, Calif. – On-Site.com, the leading provider of multifamily software solutions, set a new standard for multifamily web design this week with the release of its mobile sites powered by responsive design. By building responsively, the new websites are able to automatically alter webpage layout to fit the device of each individual website visitor. Content and branding translate perfectly from desktop to mobile and every device in between. Property managers no longer need a separate, mobile-dedicated site. With responsively designed mobile sites, one fit sizes all.