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                <div id="app">
  <div class="pinContainer" ref="pin">
    <section v-for="(p, index) in panels" class="panel" :class="`panel-${index}`" :style="{backgroundColor: p.bgColor}" >
      <h1>{{ p.title }}</h1>


                  body {
    margin: 0;
  .pinContainer {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    position: relative;
  .panel {
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 3rem;


                var app = new Vue({
  el: "#app",
  mounted() {
  data() {
    return {
      panels: [
          title: "panel 1",
          bgColor: "#29b6f6",
            "Mountains are the beginning and the end of all natural scenery."
          title: "panel 2",
          bgColor: "#ef5350"
          title: "panel 3",
          bgColor: "#ec407a"
          title: "panel 4",
          bgColor: "#66bb6a"
  methods: {
    pinContainerScene() {
      const Length = this.panels.length;

      // Create a new Timeline (equivalent to new TimelineMax())
      const tl = new this.$gsap.TimelineMax();

      for (var i = 0; i < Length; i++) {
        // For each panel in this.panels array:
        let animFrom, animOutLetters;
        switch (i) { // Set animFrom value, depending on the index i of the item
          case 0:
            break; // First panel is already visible on page load, so no animation
          case 1:
            animFrom = { x: "-100%" }; // Second panel comes from the left
          case 2:
            animFrom = { x: "100%" }; // Third one comes from the right
          case 3:
            animFrom = { y: "-100%" }; // Finally, the last one comes from the top
        if (i !== 0) {
          // For each panel except the one whom index is 0, create the tween and add it to the tl timeline
          tl.fromTo(`section.panel-${i}`, 1.5, animFrom, {
            x: "0%",
            y: "0%",
            ease: Linear.easeNone

      // create scene and set its params
      const scene = new this.$scrollmagic.Scene({
        triggerElement: ".pinContainer",
        triggerHook: "onLeave",
        duration: `${Length * 200}%` // each panel animation will last 200% of the screen's height

      // Add scene to ScrollMagic controller by emiting an 'addScene' event on vm.$ksvuescr (which is our global event bus)
      this.$ksvuescr.$emit("addScene", "pinContainerScene", scene);

  destroyed() {
    // Destroy ScrollMagic when our component is removed from DOM