Remove unused CSS with the grunt build tool
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README.md

grunt-purifycss

Clean unnecessary CSS with PurifyCSS

Getting Started

This plugin requires Grunt ~0.4.5

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-purifycss --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-purifycss');

The "purifycss" task

Usage Examples

In this example, the default options are to specify a target with src files, style files, and an output destination. The plugin will search for style selectors used in the source files, and then output a trimmed down style sheet.

grunt.initConfig({
  purifycss: {
    options: {},
    target: {
      src: ['test/fixtures/*.html', 'test/fixtures/*.js'],
      css: ['test/fixtures/*.css'],
      dest: 'tmp/purestyles.css'
    },
  },
});

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.