about.vue

<template>
  <div class="about">
    <h1>This is an about page</h1>
    <p>Test</p>
  </div>
</template>

<script>
// we don't put scoped on script

import gsap from "gsap";

export default {
  methods: {
    entranceIn() {
      gsap.from("div", {
        duration: 1,
        opacity: 0,
        x: 200,
        y: 150,
        // yoyo: true,
        //repeatRefresh: true,
        // I took these out because you're not repeating so they will do nothing
      });
    }
  },
  mounted() {
    this.entranceIn();
  }
};
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
  margin: 40px 0 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>