text: var wow = new WOW(
      {
          boxClass:     'wow',      // animated element css class (default is wow)
          animateClass: 'animated', // animation css class (default is animated)
          offset:       0,          // distance to the element when triggering the animation (default is 0)
          mobile:       true,       // trigger animations on mobile devices (default is true)
          live:         true,       // act on asynchronously loaded content (default is true)
          callback:     function(box) {
          // the callback is fired every time an animation is started
          // the argument that is passed in is the DOM node being animated
          },
          scrollContainer: null // optional scroll container selector, otherwise use window
          }
      );
  wow.init();