Patent Document ID: 7895514
Application ID: 11585000

Base Claim:
1. A method comprising: providing, by a computing system, a development environment, the development environment including a web page editor; receiving a command at the development environment, the command referencing an electronic document being edited or viewed in a graphical user interface of the development environment, the electronic document comprising a first element written in a markup language and a second element written in a style sheet language; analyzing a structure of the electronic document responsive to the command; identifying a relationship between the first and second elements, wherein the relationship is known to cause a rendering problem associated with a document viewer that supports the first and second elements, the rendering problem occurring when the first and second elements are specified using correct syntax and used in combination in rendering a document by the document viewer; and presenting information about the rendering problem via the development environment.

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Claim 8:
8. The method of claim 1 , wherein the rendering problem associated with the document viewer is caused when one of the first or second element is applied to the other of the first or second element as a style.