The document compares various features of HTML5 and Silverlight, including platforms supported, storage options, databases, offline capabilities, threading models, communication APIs, notifications, audio/video support, canvas drawing, and other miscellaneous features. Key differences discussed include HTML5's broader platform support versus Silverlight's reliance on the .NET framework and browser
![HTML5 vs Silverlight](https://cdn-ak-scissors.b.st-hatena.com/image/square/97277f918d0399a5e5b3cd66c6990a49513560a9/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Fhtml5vssilverlight-110603055320-phpapp01-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)