Bootstrap 轮播使 Html5 视频在 chrome 上闪烁

Question

任何人都可以向我解释为什么 Bootstrap Carousel 会使 HTML5 视频在 google chrome 上闪烁吗？每次轮播更改图像时下面的视频都会闪烁，我不明白这是怎么回事，它与视频包装器上的 class "embed-responsive embed-responsive-16by9" 有关，因为当我删除 class 问题不再发生，但我需要在页面上有一个响应式视频。

https://codepen.io/anon/pen/zREPqP

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>


<div class="container">
  <h2>Carousel Example</h2>  
  <div id="myCarousel" class="carousel slide" data-ride="carousel">
    <!-- Indicators -->
    <ol class="carousel-indicators">
      <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
      <li data-target="#myCarousel" data-slide-to="1"></li>
      <li data-target="#myCarousel" data-slide-to="2"></li>
    </ol>

    <!-- Wrapper for slides -->
    <div class="carousel-inner">
      <div class="item active">
        <img src="https://www.w3schools.com/bootstrap/la.jpg" alt="Los Angeles" style="width:100%;">
      </div>

      <div class="item">
        <img src="https://www.w3schools.com/bootstrap/chicago.jpg" alt="Chicago" style="width:100%;">
      </div>

      <div class="item">
        <img src="https://www.w3schools.com/bootstrap/ny.jpg" alt="New york" style="width:100%;">
      </div>
    </div>

    <!-- Left and right controls -->
    <a class="left carousel-control" href="#myCarousel" data-slide="prev">
      <span class="glyphicon glyphicon-chevron-left"></span>
      <span class="sr-only">Previous</span>
    </a>
    <a class="right carousel-control" href="#myCarousel" data-slide="next">
      <span class="glyphicon glyphicon-chevron-right"></span>
      <span class="sr-only">Next</span>
    </a>
  </div>
</div>
  <div class="row">
  <div class="col-md-offset-2 col-md-8">
<div class="embed-responsive embed-responsive-16by9"><video src="//player.vimeo.com/external/159873222.hd.mp4?s=54c0141dd1e7ab5a78a2fda1d69a9f011c89bf42&amp;profile_id=113" poster="http://cletadmin.git-staging.clet.edu.au/assets/images/video/why-study.jpg" controls="controls" width="300" height="150"></video></div></div>
  </div>
</body>
</html>

重现步骤：在chrome上打开上面的link让滑块播放，不要在视频上点击播放只是观察它从海报图像闪烁到灰色背景。

Answer 1

对我来说，它适用于：

.embed-responsive {
    z-index:1000
}

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