The Head,base,meta,title of HTML

A simple HTML essential element

The header used to define the document, which is the container for all head elements. The head describes the various properties and information of the document, and most of the head data is not displayed directly to the reader.

The following tabs are available in the head section: Base,link,meta,script,style,title

The head tag supports global properties in HTML

1. Base Global Properties

All browsers support, specify the default address or target for all links on the page, and after setting the base URL, the browser will use the base address URL to populate

All the relative URLs, including the tags have a, link, img, form

Note:,<base> tags do not have an end tag in HTML, and,<base> tags must be closed correctly in XHTML.

HREF: The base URL for all relative links in the specified page

Target: Where to open all the links in the page

_blank: A new quilt

_parent

_self: The current quilt

_top

2. Meta: Global Properties

Provides meta information about the page (Meta_info), which must be in the head, whose data is always passed in pairs in the form of a name = value.

Must attribute:

Content

Defines the meta information associated with HTTP-EQUIV and name, whose value can be any valid string

Always use with HTTP-EQUIV and name

　　　　　　

Optional properties:

1. http-equiv Content_Type associating the content attribute to the HTTP header

Expires

Refresh

Set_cookie

Provides an assignable name for the name/value pair to be sent to the Web page, which instructs the server to place the corresponding name/value pair after the MIME header of the document when the server sends the document to the browser

Sent to the browser again. Although many name/value pairs are sent when a document is sent to the browser, content-type:text/html is a mandatory item for each server that tells the browser to be ready to accept

An HTML document.

When using the META tag of the Http-equiv property, the server sends a name/value pair to the browser's head.

For example, the message sent to the browser header should be:

Content-type:text/html

Refresh:5

Expires:31 DEC 2008

　　

2. Name author to associate the content attribute to a name

Description

Keywords

Generator

Revised

Others

You can set a name that makes sense to yourself and to the source document reader, and keywords is a frequently used name that defines a set of keywords for a document that the search engine uses to classify the document.

If you do not set the Name property, the HTTP-EQUIV name/value pair will be used for the paper drop.

　　　　

3. Title: Global Properties

The browser will use the title in a special way, and when the document is added to a linked list or collection, the title of the document will be the default name for that link.

<title> tag is the only thing in the

The following standard properties are supported:

Dir Text direction of content in RTL elements

Lrt

The language code of the content in the lang language_code element

Xml:lang language_code Language code for content element content in XHTML documents

　　　　

4. Link: Global Properties

Tags define the relationship of documents to external resources.

The most common use of tags is to link style sheets

HREF: Specifies the location of the linked document.

Hreflang: Specifies the language of the text in the linked document

Rel: Specifies the relationship between the current document and the linked document

Alternate
Author
Help
Icon
Licence
Next
Pingback
Prefetch
Prev
Search
Sidebar
Stylesheet
Tag

Size: Specifies the dimensions of the resource being linked. Applies to rel= "icon" only.

The head icon style is as follows:

　　　　

The Head,base,meta,title of HTML