jQuery animate using CSS animations

jquery.animate-class.js

// add class, remove it at animation end. also callback
$.fn.animateClass = function(cls, cb) {
    if (typeof cb === 'string') {
        var endClass = cb;
        cb = function() { $(this).addClass(endClass); };
    }

    return $(this).one('webkitAnimationEnd', function() {
        $(this).removeClass(cls);
        if (cb) cb.call(this);
    }).addClass(cls);
};