<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<marquee behavior="scroll" contenteditable="true" onstart="this.firstChild.innerHTML+=this.firstChild.innerHTML;" scrollamount="3" width="100"onmouseover="this.stop();" onmouseout="this.start();">
滚动的内容
</marquee>
</body>
</html>