This version is old school.
Please find jQuery plugins on npm.
iCheck
by Damir Sultanov
Highly customizable checkboxes and radio buttons (jQuery and Zepto). Features: identical inputs across different browsers and devices (both desktop and mobile), touch devices support (iOS, Android, BlackBerry, Windows Phone, Amazon Kindle), keyboard accessible inputs (Tab, Spacebar, Arrow up/down and other shortcuts), screenreader accessible inputs — (ARIA attributes for VoiceOver and others), customization freedom (use any HTML and CSS to style inputs or try 6 Retina-ready skins), lightweight size (1 kb gzipped). Provides 32 options to customize checkboxes and radio buttons, 11 callbacks to handle changes, 9 methods to make changes programmatically. Saves changes to original inputs, works carefully with any selectors.