首先建立一个层，放入文字并用上mask滤镜：
<div id="Layer1" style="font:40pt Arial Black;filter:mask(color=white);position:absolute; left:0px; top:0px; width:508px; height:120px; z-index:2">
再建立一个层，写入<marquee>：
<marquee behavior=scroll direction=right width=508 height=120 scrollamount=4 scrolldelay=0 >
最后插入图片即可！
全部的代码：
<html>
<head>
<title>很酷的动态背景文字</title>
</head>
<body bgcolor="#FFFFFF" text="#000000" topmargin=0 leftmargin=0>
<div id="Layer1" style="font:40pt Arial Black;filter:mask(color=white);position:absolute; left:0px; top:0px; width:508px; height:120px; z-index:2">
<p>Dreamweaver</p>
</div>
<div id="Layer2" style="position:absolute; left:0px; top:0px; width:508px; height:120px; z-index:1">
<marquee behavior=scroll direction=right width=508 height=120 scrollamount=4 scrolldelay=0 >
<script language=javascript>
for(t=1;t<=1000;t++)
document.write("<img src=http://www.ccidnet.com/school/zhuan/3d/back.jpg>")
</script>
</marquee>
</div>
</body>
</html>
