/*videodetail*/
  
  body{width: 700px;  } /*avoid mp4 full ,then small change*/
     .dmvideojs{width:100%;height:400px;}
    .videoyouku{width:100%;height:420px;}
 

 @media  (max-width:750px) {
              body{ width:100%; } 
  }

 @media  (max-width:550px) {  
          
            .videoyouku{height:300px;}
 }
  @media  (max-width:480px) { 
           
            .dmvideojs{height:200px;}
			.videoyouku{height:230px;}
 }