Checking a Cascading Style Sheet for Validity

See Also 

You can automatically check a cascading style sheet (CSS) to ensure that its grammar and syntax are valid. For a description of what constitutes a valid CSS, see:

http://www.w3.org/TR/REC-CSS2/conform.html 

The Output window lists any errors in the CSS grammar along with the line number where the error was detected. This location is not necessarily the line where the error occurred. You can double-click any error message to go to the line in the CSS where the error was detected.

To check a CSS:

See Also
Creating a Cascading Style Sheet
Editing a Cascading Style Sheet
Copying and Pasting CSS References
Checking an XML Document for Well-Formedness

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