6. Html header and meta information_html/css_WEB-ITnose

The previously organized tags are all commonly used in HTML. Here we will sort out the header and meta information tags of HTML.
The header of the defined HTML should be written in the tag. Generally, it also contains the following tags:
1. <script>: used to include JavaScript scripts <br /> 2. <style&gt ;: used to define content css styles <br /> 3. <link>: used to link external css and other resources <br /> 4. <title>: used to define document titles <br /> </script>

5, : used to specify the base link of all links on the page, which is an empty element. There are 2 attributes: href and target

6, : used to define page meta information, which are some name-value key-value pairs. In addition to id, there are the following three attributes:
http-equiv: used to specify the name of meta-information. The name specified by this attribute has special meaning and can return some useful information to the browser to help the browser correctly Parse web content.
name: used to specify the name of meta-information, you can specify it arbitrarily

content: used to specify the value of meta-information.

The functions of http-equiv and name above are basically similar. The difference is that the attribute value of http-equiv is usually specified, which should be browse A name that the browser can recognize and then has a special meaning.
http-equiv has many attributes, for example:
Expires: used to specify the expiration time of the web page
Pragma: prohibit the browser from reading the cache from the local place
Refresh: specify the refresh time of the browser page
Set-Cookie: Set Cookie
keywords: Specify valid keywords for the web page, which will help search engines include this site
Content-type: Set the content type of the page and the character set used. For example:

 <meta http-equiv="content-type" content="text/html; charset=UTF-8">

Finally, sort out the html to display some special characters, such as spaces, etc.: