App.vue

<template>
  <div id="app">
    <keep-alive>
      <router-view/>
    </keep-alive>
  </div>
</template>

<script>
export default {
  name: 'App'
}
</script>

<style lang="scss">
#app {
  min-height: 100vh;
  background-color: #f7f9fc;
}
</style>