点击运行
<!DOCTYPE html> <html> <body> <video width="320" height="240" controls> <source src="/zy/i/movie.mp4" type="video/mp4" media="screen and (min-width:320px)"> <source src="/zy/i/movie.ogg" type="video/ogg" media="screen and (min-width:320px)"> Your browser does not support the video tag. </video> <p><b>注释：</b>目前几乎没有浏览器支持 media 属性。</p> </body> </html>
运行结果
