<script type="text/javascript">
</script> <script src="http://pagead2.googlesyndication.com/pagead/show_ads.js" type="text/javascript"></script>
一. 文件头
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
二. css文件的编码问题。默认是ansi的文件编码,改成utf-8