Abstract: Systems and methods directed at providing browser sensitive web content are provided. A web server is configured to receiving a request from a client and to identify a browser in the client from which the request was initiated. A browser specific cascading style sheet (CSS) corresponding to the identified browser is determined. The browser specific CSS includes instructions that enable the browser to handle elements that are provided by a certain version of a CSS standard. The web server incorporates the browser specific CSS into web content and provides the web content with the browser specific CSS to the client in response to the request.

Abstract: A user interface having a persistent graphical interface element is disclosed. The element may have an appearance of a mechanical structure that traverses one or more displayed tracks. Movement along the tracks may be animated in response to navigation commands. Selectable menu panels may be included in the interface, and may overlay displayed contents of documents being viewed and/or edited to ensure that certain menu options are always available. The menu may be given multiple distinct appearances corresponding to different display sizes.

Abstract: A user interface having a persistent graphical interface element is disclosed. The element may have an appearance of a mechanical structure that traverses one or more displayed tracks. Movement along the tracks may be animated in response to navigation commands. Selectable menu panels may be included in the interface, and may overlay displayed contents of documents being viewed and/or edited to ensure that certain menu options are always available. The menu may be given multiple distinct appearances corresponding to different display sizes.