csslint

CSS code quality checker

TLDR

Lint a CSS file

$ csslint [file.css]

Lint with specific rules

$ csslint --errors=[rule1,rule2] [file.css]

Lint with warnings

$ csslint --warnings=[rule1,rule2] [file.css]

Output in specific format

$ csslint --format=[compact|json|text] [file.css]

Ignore specific rules

$ csslint --ignore=[rule1,rule2] [file.css]

SYNOPSIS

csslint [options] file.css [files...]

csslint is a tool for checking CSS code quality. It identifies potential problems like inefficient selectors, browser compatibility issues, and stylistic errors. The tool checks for patterns that may cause cross-browser issues, performance problems, or maintenance difficulties.
Rules are categorized by severity and cover topics like selector performance, box model compatibility, known browser bugs, and best practices. csslint can be integrated into build processes and continuous integration workflows.

PARAMETERS

--errors rules

Comma-separated list of rules to treat as errors.

--warnings rules

Comma-separated list of rules to treat as warnings.

--ignore rules

Comma-separated list of rules to ignore.

--format format

Output format: text, compact, json, checkstyle-xml, lint-xml, junit-xml.

--list-rules

Show all available rules.

CONFIGURATION

.csslintrc

JSON configuration file for customizing rules and severity levels.