vue-single-file.js

<template>
  <section class="container">
    <div>
      <app-logo>
      <h1 class="title">
        Demo
      </h1>
      <h2 class="subtitle">
        My project
      </h2>
    </app-logo></div>
  </section>
</template>

<script>
  import AppLogo from '~/components/AppLogo.vue'
  export default {
    components: {
      AppLogo
    }
  }
</script>
<style>
  .container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
</style>