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使用jquery的全屏视频背景

使用jquery的全屏视频背景

在这篇文章中，我们将在各种例子的帮助下了解一个全屏视频背景的话题。在这里面，我们使用了一个<video>标签，在背景中添加了一个覆盖整个全屏的视频。

示例 1:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of Full Screen video Background using jquery </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<style>
* { box-sizing: border-box; }
html {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%);    
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
body {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%); 
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: black;
  letter-spacing: 2px;
  text-align: center;
}
body {
  margin: 0;
  padding: 0;
}
.bg-video-wrap {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 100vh;
  background: url(https://designsupply-web.com/samplecontent/vender/codepen/20181014.png) no-repeat center center/cover;
}
video {
  min-width: 100%;
  min-height: 100vh;
  z-index: 1;
}
.overlay {
  width: 100%;
  height: 100vh;
  position: absolute;
  top: 0;
  left: 0;
  background-image: linear-gradient(45deg, rgba(0,0,0,.3) 50%, rgba(0,0,0,.7) 50%);
  background-size: 3px 3px;
  z-index: 2;
}
h1 {
  text-align: center;
  color: #fff;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  z-index: 3;
  max-width: 400px;
  width: 100%;
  height: 50px;
}

</style>
<body>
  <body>
  <div class = "bg-video-wrap">
    <video src = "https://designsupply-web.com/samplecontent/vender/codepen/20181014.mp4" loop muted autoplay>
    </video>
    <div class = "overlay">
    </div>
    <h1> Example:
    Full Screen video Background using jquery 
    </h1>
  </div>
</body>
</body>
</html>

解释： 在上面的例子中，我们创建了一个覆盖整个屏幕的全屏视频背景。

输出：

以下是这个例子的输出。

使用jquery的全屏视频背景

示例 2:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of Full Screen video Background using jquery </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<style>
* { box-sizing: border-box; }
html {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%);    
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
body {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%); 
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: black;
  letter-spacing: 2px;
  text-align: center;
}
@import url(https://fonts.googleapis.com/css?family=Roboto:400,700);
.demo-video-wrapper {
  background-image: url(https://d3k5xyayaartr5.cloudfront.net/_assets/home-video/beach-waves-loop.jpg);
}
.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  pointer-events: none;
  background: url("https://d3k5xyayaartr5.cloudfront.net/_assets/pattern-overlays/patterns/black-medium-checks.png") left top repeat;
  opacity: 0.3;
}
.video-hero--content {
  position: relative;
  text-align: center;
  color: #FFF;
  margin: 150px 0;
  text-shadow: 0 0 5px rgba(0, 0, 0, 0.4);
}
.video-hero--content h2 {
  font-size: 34px;
  margin: 0 0 10px;
}
.video-hero--content p {
  font-size: 20px;
  margin: 0;
}
body {
  font-family: "Roboto", sans-serif;
  font-size: 16px;
  line-height: 1.4;
  color: #666;
}

a {
  text-decoration: none;
  color: #a46497;
}
.cf:before,
{
  content: " ";
  display: table;
}
.cf:after {
  content: " ";
  display: table;
}
.cf:after {
  clear: both;
}

.page-width {
  width: 92%;
  max-width: 960px;
  margin: 0 auto;
}

#header {
  background: #2c2d33;
  padding: 2em 0;
}

#header a {
  color: #FFF;
}

.title {
  display: block;
  font-weight: bold;
  font-size: 18px;
}

.subtitle {
  display: block;
  font-weight: normal;
  font-size: 15px;
  color: #959699;
}

a:hover .subtitle {
  color: #FFF;
}

#site-title {
  float: left;
  margin: 0;
}

#content {
  padding: 40px 0;
}
.jquery-background-video-wrapper {
  position: relative;
  overflow: hidden;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

.jquery-background-video {
  position: absolute;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  top: 50%;
  left: 50%;
  -o-object-fit: contain;
  object-fit: contain;
  transform: translate(-50%, -50%);
}

.js .jquery-background-video {
  opacity: 0;
  transition: opacity 300ms linear;
}

.js .jquery-background-video.is-visible {
  opacity: 1;
}

.jquery-background-video-pauseplay {
  position: absolute;
  background: transparent;
  border: none;
  box-shadow: none;
  width: 20px;
  height: 20px;
  top: 15px;
  right: 15px;
  padding: 0;
  cursor: pointer;
  outline: none !important;
}

.jquery-background-video-pauseplay span {
  display: none;
}

.jquery-background-video-pauseplay:after {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  transition: all 0.3s ease;
}
.jquery-background-video-pauseplay:before {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  transition: all 0.3s ease;
}

.jquery-background-video-pauseplay.play:before {
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 15px solid #FFF;
}

.jquery-background-video-pauseplay.pause:before {
  border-top: 10px solid #FFF;
  border-bottom: 10px solid #FFF;
  border-left: 5px solid #FFF;
}
.jquery-background-video-pauseplay.pause:after {
  border-top: 10px solid #FFF;
  border-bottom: 10px solid #FFF;
  border-left: 5px solid #FFF;
}

.jquery-background-video-pauseplay.pause:after {
  left: 10px;
}
</style>
<body>
<div id = "header" class = "cf">
    <div class = "page-width">
            <h1 id = "site-title">
                <a href = "http://html5backgroundvideos.com" target = "_blank">
 <span class = "title"> Example </span>
<span class = "subtitle">Full Screen video Background using jquery </span> </a>
            </h1>
      </div>
</div>
<div class = "video-hero jquery-background-video-wrapper demo-video-wrapper">
  <video class = "jquery-background-video" autoplay muted loop poster = "https://d2ezlykacdqcnj.cloudfront.net/_assets/home-video/beach-waves-loop.jpg">
    <source src = "https://d2ezlykacdqcnj.cloudfront.net/_assets/home-video/beach-waves-loop.mp4" type = "video/mp4">
  </video>
      <div class = "video-overlay"> </div>
    <div class = "page-width">
            <div class = "video-hero--content">
               <h2> Background Video Demo </h2>
                  <p> Full width video hero </p>
            </div>
    </div>
</div>
</body>
</html>

解释： 在上面的例子中，我们创建了一个覆盖整个屏幕的全屏视频背景。

输出：

以下是这个例子的输出。

使用jquery的全屏视频背景

示例 3:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of Full Screen video Background using jquery </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<style>
html, body {
  overflow-x: hidden;
  width: 100%;
  min-height: 100%;
}

body {
  background: #1d1f20;
  color: #aaa;
  font-size: 18px;
  line-height: 1.4;
  font-family: 'Inconsolata', sans-serif;
}

* {
  box-sizing: border-box;
}

#video-container {
    position: absolute;
    top: 0;
    left: 0;
  right: 0;
  bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    overflow: hidden;

  .touch & {
    background: url(http://xtianmiller.com/dist/videos/winter_creek.jpg) no-repeat center;
    background-size: cover;
  }
}
video {
    width: 100%;
  height: 100%;

  .touch & {
    display: none;
  }
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 20;
    background-color: rgba(0,0,0,0.7);
  padding-left: 6%;
  padding-right: 6%;
  display: table;

  &__inner {
    width: 100%;
    height: auto;
    display: table-cell;
    vertical-align: middle;
    text-align: center;
  }

  h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: black;
  letter-spacing: 2px;
  text-align: center;
}
  p {
    padding-top: 1em;
    max-width: 40em;
    margin: 0 auto;
  }  
  a.btn {
    display: inline-block;
    margin-top: 25px;
    border: 1px solid #00c1bb;
    color: #00c1bb;
    text-decoration: none;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
  } 
  a.btn span {
    display: inline-block;
    padding: 6px 40px;
    transition: transform 0.4s;
  }
  a.btn .row2 {
    position: absolute;
    left: 0;
    top: 0;
    transform: translateY(100%);
  }
  a.btn:hover .row1 {
    transform: translateY(-100%);
  }
  a.btn:hover .row2 {
    transform: translateY(0);
  }
}
</style>
<body>
<div id = "video-container">
  <video preload = "auto" autoplay loop muted width = "1440" height = "810">
    <source src = "https://vectorform.com/wp-content/themes/vectorform/videos/about.mp4" type = "video/mp4">    
  </video>
</div>
<div class = "overlay">
  <div class = "overlayinner">
    <h2> Example </h2>
    <h1>
      Full Screen Video Background using Jquery
    </h1>
  </div>
</div>
<script>
'use strict';
function debounce(func, wait, immediate) {
  var timeout;
  return function() {
    var context = this,
      args = arguments;
    var later = function() {
      timeout = null;
      if (!immediate) {
        func.apply(context, args);
      }
    };
    var callNow = immediate && !timeout;
    clearTimeout(timeout);
    timeout = setTimeout(later, wait);
    if (callNow) {
      func.apply(context, args);
    }
  };
}
var htmlTag = document.getElementsByTagName('html')[0];
var videoContainer = document.querySelector('#video-container');
var videoElem = document.querySelector('#video-container video');
var minW = 320; 
var vidWOrig; 
var vidHOrig;
vidWOrig = videoElem.getAttribute('width');
vidHOrig = videoElem.getAttribute('height');
var videoCover = function() {
  var winWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
  var winHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
  videoContainer.style.width = winWidth + 'px';
  videoContainer.style.height = winHeight + 'px';
  var scaleH = winWidth / vidWOrig;
  var scaleV = winHeight / vidHOrig;
  var scale = scaleH > scaleV ? scaleH : scaleV;
  if (scale * vidWOrig < minW) {
    scale = minW / vidWOrig;
  }
  var videoNewWidth = scale * vidWOrig;
  var videoNewHeight = scale * vidHOrig;
  videoElem.style.width = videoNewWidth + 'px';
  videoElem.style.height = videoNewHeight + 'px';
  videoContainer.scrollLeft = (videoNewWidth - winWidth) / 2;
  videoContainer.scrollTop = (videoNewHeight - winHeight) / 2;
};
if (htmlTag.classList.contains('no-touch')) {
  videoCover();
  var updateVideo = debounce(function() {
    videoCover();
  }, 100);
  window.addEventListener('resize', updateVideo);
}
</script>
</body>
</html>

解释： 在上面的例子中，我们创建了一个覆盖整个屏幕的全屏视频背景。

输出：

以下是这个例子的输出。

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