More work.

js/hero.js

@@ -0,0 +1,17 @@
+var x = window.screen.width > 512 ? 160 : 80;
+
+var controller = new ScrollMagic.Controller();
+
+var hero = new TweenMax.from("#hero", 1, {
+    x: this.x,
+    ease: Power1.easeOut
+});
+
+var heroScene = new ScrollMagic.Scene({
+    triggerElement: "#start",
+    triggerHook: 0,
+    duration: 320
+})
+.setTween(hero)
+.addTo(controller);
+