Vue登錄主頁動態背景短視頻制作

<source src="../assets/video/G1s.mp4" type="video/mp4"/>

<template>
 <div class="homepage-hero-module">
  <div class="video-container">
  <div : class="filter">
   <!--內容-->
  </div>
  <video : autoplay loop muted class="fillWidth" v-on:canplay="canplay">
   <source src="../assets/video/G1s.mp4" type="video/mp4"/>
   瀏覽器不支持 video 標簽，建議升級瀏覽器。
   <source src="../assets/video/G1w.webm" type="video/webm"/>
   瀏覽器不支持 video 標簽，建議升級瀏覽器。
  </video>
  <div class="poster hidden" v-if="!vedioCanPlay">
   <img : src="../assets/video/G1.jpg" alt="">
  </div>
  </div>
 </div>
</template>

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

export default {
 name: 'Video',
 data() {
  return {
  vedioCanPlay: false,
  fixStyle: ''
  }
 },
 methods: {
  canplay() {
  this.vedioCanPlay = true
  }
 },
 mounted: function() { //屏幕自適應
  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 + 'px',
   width: windowWidth + 'px',
   'margin-bottom': (windowHeight - videoHeight) / 2 + 'px',
   'margin-left': 'initial'
   }
  } else {
   videoHeight = windowHeight
   videoWidth = videoHeight / 0.5625
   this.fixStyle = {
   height: windowHeight + 'px',
   width: windowHeight / 0.5625 + 'px',
   'margin-left': (windowWidth - videoWidth) / 2 + 'px',
   'margin-bottom': 'initial'
   }
  }
  }
  window.onresize()
 }
 }