csslint

Lint CSS code. More information: https://github.com/CSSLint/csslint/wiki/Command-line-interface.

csslint file.css

csslint file1.css file2.css ...

csslint --list-rules

csslint --errors=errors,universal-selector,imports file.css

csslint --warnings=box-sizing,selector-max,floats file.css

csslint --ignore=ids,rules-count,shorthand file.css