您可以尝试运行以下代码以使用max-width属性来使视频播放器响应-
<!DOCTYPE html>
<html>
<head>
<meta name = "viewport" content = "width=device-width, initial-scale = 1.0">
<style>
video {
max-width: 100%;
height: auto;
}
</style>
</head>
<body>
<video width = "300" controls autoplay>
<source src = "/html5/foo.ogg" type = "video/ogg" />
<source src = "/html5/foo.mp4" type = "video/mp4" />
</video>
<p>To check the effect, you need to resize the browser.</p>
</body>
</html>