如何指定HTML中的文本轨道类型？
使用HTML中的kind 属性可以指定HTML中文本轨道的类型。例如，您可以将种类设置为字幕文件的字幕。
示例
您可以尝试运行以下代码以实现kind属性-
<!DOCTYPE HTML>
<html>
<body>
<video width = "300" height="200" controls autoplay>
<source src = "/html5/foo.ogg" type = "video/ogg" />
<source src = "/html5/foo.mp4" type = "video/mp4" />
<track src = "subtitles_en.vtt" kind = "subtitles" srclang = "en" label = "English">
<track src = "subtitles_ru.vtt" kind = "subtitles" srclang = "ru" label = "Russia" default>
Your browser does not support the video element.
</video>
</body>
</html>