csslint

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

• Lint a single CSS file:

csslint file.css

• Lint multiple CSS files:

csslint file1.css file2.css ...

• List all possible style rules:

csslint --list-rules

• Treat certain rules as errors (which results in a non-zero exit code):

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

• Treat certain rules as warnings:

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

• Ignore specific rules:

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