gsapTestEfetivos.vue

<template>
  <div id="box"> 
    {{ desc }}
  </div>
</template>

<script>
import { TweenMax } from 'gsap'
import $ from 'jquery'
  
export default {
  name: 'gsapTest',
  
  data () {
    return {
      desc: 'My page with gsap and jQuery'
    }
  },
  
  // Dispara assim que o componente for montado no DOM (HTML)
  mounted () {
    TweenMax.to('#box', 10, {width: 0})
    $('#box').hide() 
  }
}

</script>

<style>
#box{
    position: absolute;
    margin: 50px 50px;
    width: 80px;
    height: 80px;
    background-color: red;
}
</style>