npm install vue-transition.css --save

<!-- 引入样式 -->
<link rel="stylesheet" href="vue-transition.min.css">

// 入口页,如app.vue
<template>
  <div class="app">
    ...
    // 例如使用 move-right-to-left 动画
    <transition name="move-right-to-left">
      <router-view class="app-router-view"></router-view>
    </transition>
    ...
  </div>
</template>

<script>
  // 引入vue-transition.css
  import 'vue-transition.css'
  ...
</script>

<style>
  // 给页面加上以下样式，动画才能生效
  html,
  body,
  .app {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }
  .app {
    background-color: #000;
    perspective: 1200px;
  }

  .app .app-router-view {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    overflow: hidden;
    backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
    transform-style: preserve-3d;
    visibility: visible;
  }
</style>