Validate CSS code with CSS Lint. Identify errors and warnings in your stylesheets to improve code quality. Free online tool, no registration required.
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}}