利用css将视频作为背景图片
1.需要准备好视频背景,video.mp4文件
2.将以下代码粘贴到需要的地方:
<div class="videocontainer">
<video class="fullscreenvideo" poster="__ROOT__/Themes/tdt/Asset/images/loginbg.jpg" id="bgvid" playsinline="" autoplay="" muted="" loop="">
<source src="视频路径" type="video/mp4">
</video>
</div>
3.css设置,使视频能够自适应屏幕大小:
.fullscreenvideo {
position: absolute;
width: 100%;
height:100%;
}
.videocontainer {
position: fixed;
width: 100%;
height: 100%;
overflow: hidden;
z-index: -100;
}
.videocontainer:before {
content: "";
position: absolute;
width: 100%;
height: 100%;
display: block;
z-index: -1;
top: 0;
left: 0;
}