$ sudo npm install csslint
$ sudo npm install -g csslint

If want to update the csslint package execute the command as below,

$ sudo npm update csslint

Update package globally,

$ npm install -g csslint

Git clone:

$ sudo  git clone https://github.com/rektide/csslint.git

$ sudo  npm install -g ./csslint

csslint@1.0.5 /usr/lib/node_modules/csslint

How to remove csslint package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall csslint

Basic Information of csslint NPM Package: