使用mp4為目前最保險的方法
控制播放
<video width="320" height="240" controls>
<source src="movie.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
自動播放
<video width="320" height="240" autoplay>
<source src="movie.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
