This document discusses implementing a multi-device approach to e-learning design. It notes that learners now access content across multiple devices and discusses challenges in supporting different devices, browsers, and transitions in web standards. It recommends using HTML5, CSS3, and JavaScript to create responsive design that adapts to different screen sizes. HTML5 elements like video, audio, and semantic tags can make the content easier to read and navigate on different devices. The document also demonstrates Raptivity, a tool for rapidly building interactive content that supports both Flash and HTML5 and can be integrated with authoring tools.