javascript - 视频背景在 Safari 上无法正常播放

Question

视频背景在 Safari 上无法正常播放。它显示在屏幕的右下角，看起来不太好看。但这在 Chrome 上效果很好。

这是 link .

这是 HTML 代码:

<video autoplay  poster="" id="bgvid" loop>
  <!-- WCAG general accessibility recommendation is that media such as background video play through only once. Loop turned on for the purposes of illustration; if removed, the end of the video will fade in the same way created by pressing the "Pause" button  -->
<source src="http://devjentri.com/wp-content/uploads/2015/09/deW_vid_final_.webm" type="video/webm">
<source src="http://devjentri.com/wp-content/uploads/2015/09/deW-vid-final-.mov" type="video/mp4">
</video>

CSS 代码:

video { 
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -100;
    transform: translateX(-50%) translateY(-50%);
    background-size: cover;
    transition: 1s opacity;
}

Answer 1

您需要将转换的 vendor 前缀版本添加到您的 CSS 规则中:

-webkit-transform: translateX(-50%) translateY(-50%);

完整的规则应该是这样的:

video { 
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -100;
    -webkit-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
    background-size: cover;
    transition: 1s opacity;
}