Meta tags are used to define file information and explain web files to facilitate search engines to find. Placed between <head></head>
Set keywords:
<meta name=keywords content=value> can be used and separated by multiple keyword contents
Setting description: <meta name=description content=value>
Set the author: <meta name=author content=author name>
Set character set: <meta http-equiv=content-type content=text/html;charset=gb2312>
Set page timing jump: <meta http-equiv=refreshcontent=2;URL=http://www.itcast.cn />