// build scene
             var scene = new ScrollMagic.Scene({triggerElement: "#me"})
                  // trigger animation by adding a css class
                     .setClassToggle("h2", "tweenh2")
             .addIndicators({name: "1 - add a class"}) // add indicators (requires plugin)
                         .addTo(controller);

                       // build scene
             var scene = new ScrollMagic.Scene({triggerElement: "#me"})
                 // trigger animation by adding a css class
                  .setClassToggle("h3", "tweenh3")
                 .addIndicators({name: "1 - add a class"}) // add indicators (requires plugin)
                 .addTo(controller);