How to set video to opaque background in HTML

HTML method to set video to opaque background: use loop, autoplay method, directly insert relevant code [].

The operating environment of this tutorial: windows7 system, html5 version, DELL G3 computer. This method is suitable for all brands of computers.

How to set video to opaque background in HTML:

Insert the following code first:

<video src="../video/2b.mp4" loop="loop" autoplay="autoplay"></video>

• loop means loop play

• autoplay means automatic play

css modified as follows:

<style>
body{
    margin:0;//body外边距设为0；
}
video{
    position: fixed;//视频定位方式设为固定
    right: 0;
    bottom: 0;//视频位置
    min-width: 100%;
    min-height: 100%; //不会因视频尺寸造成页面需要滚动
    width: auto;
    height: auto; //尺寸保持原视频大小
    z-index: -100; //z轴定位，小于0即可
    -webkit-filter: grayscale(20%);//添加灰度蒙版，如果设定为100%则视频显示为黑白
}
</style>

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