                     el.style[this._getPrefix(key)] = computedStyle.getPropertyValue(this._getCssPrefix(key))
 
                 el.style[this._getPrefix("transition")] = ""
+
+            return this
 
         # set loop
         loop: (looping) ->

                "transition": null
            )

    window.Moon = Moon
                for key, value of args
                    el.style[this._getPrefix(key)] = value

            return this

        pause: ->
            this._paused = new Date()
            for el in this._collection
