CSS Tree Validator
How to use:
> npm i -g csstree-validator
> csstree-validator /path/to/style.css> csstree-validator -h
Usage:
csstree-validate [fileOrDir] [options]
Options:
-h, --help Output usage information
-r, --reporter <name> Format of output: console (default), checkstyle, json
-v, --version Output version
API
var validate = require('csstree-validator').validateFile;
var reporter = require('csstree-validator').reporters.checkstyle;
console.log(reporter(validateFile('/path/to/style.css')));