javascript：
<script language=”javascript” type=”text/javascript”>
document.write(”<div style=’display:none;’>”);
</script><div>
<a href=http://www.xaboy.com>西安seo</a>
<script language=”javascript” type=”text/javascript”>
document.write(”</div>”);
</script>
html代码：
<marquee height=1 width=5 SCROLLAMOUNT=3000 SCROLLDELAY=20000>
<a href=http://www.xaboy.com>西安seo</a></MARQUEE>
css1:
<div style=”position: absolute; top: -999px;left: -999px;”>
<a href=http://www.xaboy.com>西安seo</a>
</div>
css2:
<div style=”position:absolute;left:expression(1-900);top:expression(3-999);”>
<a href=http://www.xaboy.com>西安seo</a>
</div>
