Using HTML web page examples to explain the meaning of the head area code
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Use examples to familiarize yourself with the meaning of the header information on a web page <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--Document Type--> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"><!--Set the file encoding of the web page--> <meta http-equiv="expires" content="2008/10/15 18:00:00"><!--Expiration time for offline browsing--> <meta http-equiv="pragma" content="no-cache"><!--Prohibit web pages from being read from the cache--> <meta http-equiv="Refresh" content="5;https://www.jb51.net"><!--Web page redirection--> <meta http-equiv="set-cookie" content="2007/10/18 18:00:00"><!--Set the cookie expiration time of the web page--> <meta http-equiv="Window-target" content="_top"><!--Set the target window of the link in the web page--> <meta http-equiv="Page-Enter" content="revealTrans(duration=1000000,transition=50000000)"><!--Set the opening effect of the web page--> <meta http-equiv="Page-Exit" content="revealTrans(duration=1000000,transition=50000000)"><!--Set the closing effect of the web page--> <meta name="keywords" content="web,jb51,webdesign"><!--Set the keywords of the web page, and give priority when searching! ! ! important! ! ! This data is indexed by search engines --> <meta name="description" content="哈哈哈哈哈哈"><!--Insert description to be indexed by search engines when searching--> <title>The title must not be missing! Very useful for SEO! </title> </head> <body> aaa </body> </html> |
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