<html>
<head>
<title> four in one vedio</title>
<style type="text/css">
video.margin {
margin: -7px -10px 0 -2px
}
</style>
</head>
<body class="margin" display:block margin:0px>
<video class="margin" controls="controls" autoplay="autoplay">
<source src="test.mp4" type="video/mp4" ></source>
Your browser does not support the video tag.
</video>
</body>
</html>原文：http://www.cnblogs.com/theWayToAce/p/5380038.html