Custom Size For Mobile Video (PHP/CS/Nuevo)

JOB: Require custom output for video on mobile devices. For developers who have ClipShare / Nuevo experience, we are using CS for the SiteAdmin Console / PHP Pages and need a modification to allow for a defined Height/Width (size) to fit mobile devices. (at present, the video which is controlled by the SiteAdmin works fine for desktop, but is too large for mobile). While the video for mobile devices works fine (front-end is Nuevo), only the size needs to be changed. For a ClipShare / Nuevo developer, all that is required is to ensure that the video size renders different on mobile than on the desktop. Note that the site is protected at the present time and all development needs to be done from someone who knows the CS/Nuevo environment and have the ability to test locally, as our site cannot be opened at present. Code will be provided. Please quote your est timeframe for this task, and related experience.