Block-level element characteristics:
You will always fill parent element (width of the block elements are always equal to the width of its parent element)
Row-level element characteristics:
Space occupied by just equal to the size of the content
Common block-level elements:
h1~h6、p、ul、div、li、form
Row-level common elements:
a, span, u, i, s, em, b, img (specific row-level element, can be modified size)
meta tags
It is also a key form of tag-value key
<meta http-equiv="content-type" content="text/html" charset="gbk">
Will tell the server, the browser here look forward to receiving the data type is a text html format and encoding is gbk, the server will return to gbk encoding a document to the browser, the browser will be decoded in the gbk way.
<meta http-equiv="expires" content="时间点">
expires: Expiration
Time to set the cache of the page
< Meta HTTP-equiv = "Refresh" Content = "2, url = HTTP: //www.baidu.com" > // 2s after the auto-refresh the page, and jump to Baidu.
2: Delay 2s, 2s after the web page is refreshed
url: Jump after the refresh link
Set pages automatically refresh
<meta http-equiv="X-UA-Compatible" content="IE=8,chrome=1">
Compatible: Adapter
In order to address some of the compatibility issues of IE
IE = edge to tell which version of IE browser engine to use to render our website
edge: the current computer installed the latest version of IE engine
chrome = 1 if the engine is also installed on the user's computer Google browser, then it calls the Google browser rendering our website.
<meta name="author" content="Crazier_Z">
Web authors
< Meta name = "the Description" Content = "strongest ground page" >
Page description
<meta name="keywords" content="java,web前端">
seo