Vue.js 2.0 を使用して背景ビデオ ログイン ページを実装する方法

<template>
 <p class="homepage-hero-module">
 <p class="video-container">
 <p :style="fixStyle" class="filter"></p>
 <video :style="fixStyle" autoplay loop class="fillWidth" v-on:canplay="canplay">
 <source src="PATH_TO_MP4" type="video/mp4"/>
 浏览器不支持 video 标签，建议升级浏览器。
 <source src="PATH_TO_WEBM" type="video/webm"/>
 浏览器不支持 video 标签，建议升级浏览器。
 </video>
 <p class="poster hidden" v-if="!vedioCanPlay">
 <img :style="fixStyle" src="PATH_TO_JPEG" alt="">
 </p>
 </p>
 </p>
</template>

<style scoped>
 .homepage-hero-module,
 .video-container {
 position: relative;
 height: 100vh;
 overflow: hidden;
 }
 .video-container .poster img,
 .video-container video {
 z-index: 0;
 position: absolute;
 }
 .video-container .filter {
 z-index: 1;
 position: absolute;
 background: rgba(0, 0, 0, 0.4);
 }
</style>

<script>
 export default {
 name: &#39;login&#39;,
 data() {
 return {
 vedioCanPlay: false,
 fixStyle: &#39;&#39;
 }
 },
 methods: {
 canplay() {
 this.vedioCanPlay = true
 }
 },
 mounted: function() {
 window.onresize = () => {
 const windowWidth = document.body.clientWidth
 const windowHeight = document.body.clientHeight
 const windowAspectRatio = windowHeight / windowWidth
 let videoWidth
 let videoHeight
 if (windowAspectRatio < 0.5625) {
  videoWidth = windowWidth
  videoHeight = videoWidth * 0.5625
  this.fixStyle = {
  height: windowWidth * 0.5625 + &#39;px&#39;,
  width: windowWidth + &#39;px&#39;,
  &#39;margin-bottom&#39;: (windowHeight - videoHeight) / 2 + &#39;px&#39;,
  &#39;margin-left&#39;: &#39;initial&#39;
  }
 } else {
  videoHeight = windowHeight
  videoWidth = videoHeight / 0.5625
  this.fixStyle = {
  height: windowHeight + &#39;px&#39;,
  width: windowHeight / 0.5625 + &#39;px&#39;,
  &#39;margin-left&#39;: (windowWidth - videoWidth) / 2 + &#39;px&#39;,
  &#39;margin-bottom&#39;: &#39;initial&#39;
  }
 }
 }
 window.onresize()
 }
 }
</script>