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Basic Tags

Basic

<!DOCTYPE>
Defines the document type
<body>
Defines the document's body
<br />
Inserts a single line break
<h1> to <h6>
Defines HTML headings
<hr />
Defines a horizontal line
<p>
Defines a paragraph

Images

<area />
Defines an area inside an image-map
<img />
Defines an image
<map>
Defines an image-map

Links

<a>
Defines an anchor
<html>
Defines an HTML document
<link />
Defines the relationship between a document and an external resource
CSS
CSS Cheat Sheet
HTML & XHTML Tag Quick Reference [.pdf]
HTML/XTML in one page
JavaScript
JavaScript Cheat Sheet

Lists

<dd>
defines a description of an item in a definition list
<dir>
deprecated.defines a directory list
<dl>
defines a definition list
<dt>
defines an item in a definition list
<li>
defines a list item
<menu>
deprecated.defines a menu list
<ol>
defines an ordered list
<ul>
defines an unordered list

Resource

Download

Online

<base />
specifies the base url/target for all relative urls in a document
<basefont />
deprecated. specifies a default color, size,or font for all the text in a document
<div>
defines a section in a document
<head>
defines information about the document
<meta>
defines metadata about an html document
<span>
defines a section in a document
Official Website

Formatting

Format

<abbr>
Defines an abbreviation
<acronym>
Defines an acronym
<address>
Defines contact information for the author/owner of a document
<b>
Defines bold text
<bdo>
Overrides the current text direction
<big>
Defines big text
<blockquote>
Defines a long quotation
<center>
Deprecated.Defines centered text
<cite>
Defines a citation
<code>
Defines a piece of computer code
<del>
Defines text that has been deleted from a document
<dfn>
Defines a definition term
<em>
Defines emphasized text
<font>
Deprecated.Defines font, color, and size for text
<i>
Defines italic text
<ins>
Defines text that has been inserted into a document
<kbd>
Defines keyboard input
<pre>
Defines preformatted text
<q>
Defines a short quotation
<s>
Deprecated.Defines strikethrough text
<samp>
Defines sample output from a computer program
<small>
Defines smaller text
<strike>
Deprecated.Defines strikethrough text
<strong>
Defines strong text
<sub>
Defines subscripted text
<sup>
Defines superscripted text
<tt>
Defines teletype text
<u>
Deprecated.Defines underlined text
<var>
Defines a variable
<xmp>
HTML手册
HTML 快速入门。

Form/Table

Forms

<button>
defines a clickable button
<fieldset>
groups related elements in a form
<form>
defines an html form for user input
<input />
defines an input control
<label>
defines a label for an <input> element
<legend>
defines a caption for a <fieldset> element
<optgroup>
defines a group of related options in a drop-down list
<option>
defines an option in a drop-down list
<select>
defines a drop-down list
<textarea>
defines a multiline input control (text area)

Tables

<caption>
defines a table caption
<col />
defines attribute values for one or more columns in a table
<colgroup>
defines a group of columns in a table for formatting
<table>
defines a table
<tbody>
groups the body content in a table
<td>
defines a cell in a table
<tfoot>
groups the footer content in a table
<th>
defines a header cell in a table
<thead>
groups the header content in a table
<tr>
defines a row in a table

Frames

<frame />
Defines a window (a frame) in a frameset
<frameset>
Defines a set of frames
<iframe>
Defines an inline frame
<noframes>
Defines an alternate content for users that do not support frames

Others

Styles

<style>
defines style information for a document

Meta Info

<title>
defines the document title

Programming

<applet>
deprecated. defines an embedded applet
<noscript>
defines an alternate content for users that do not support lient-side scripts
<object>
defines an embedded object
<param />
Defines a parameter for an object
<script>
defines a client-side script

Attributes

Core

class
pecifies one or more classnames for an element (refers to a class in a style sheet)
id
pecifies a unique id for an element
style
pecifies an inline CSS style for an element
title
pecifies extra information about an element

Language

xml:lang
dir
pecifies the text direction for the content in an element
lang
pecifies the language of the element's content

Keyboard

accesskey
Specifies a shortcut key to activate/focus an element
tabindex
Specifies the tabbing order of an element

HTML Events

Entities

Character

™ 
dsf
<span>&</span> <span class="right">&</span>
<span>"</span> <span class="right">"</span>
@ @
> >
< <
 
dfsdfs
• 
£ £
€

Status 1XX

1XX:Information

100 Continue
The server has received the request headers, and the client should proceed to send the request body
101 Switching Protocols
The requester has asked the server to switch protocols
103 Checkpoint
Used in the resumable requests proposal to resume aborted PUT or POST requests

Status 2XX

2XX:Successful

200 OK
The request is OK (this is the standard response for successful HTTP requests)
201 Created
The request has been fulfilled, and a new resource is created
202 Accepted
The request has been accepted for processing, but the processing has not been completed
203 Non-Authoritative Information
The request has been successfully processed, but is returning information that may be from another source
204 No Content
The request has been successfully processed, but is not returning any content
205 Reset Content
The request has been successfully processed, but is not returning any content, and requires that the requester reset the document view
206 Partial Content
The server is delivering only part of the resource due to a range header sent by the client

Status 3XX

3XX:Redirection

300 Multiple Choices
A link list. The user can select a link and go to that location. Maximum five addresses
301 Moved Permanently
The requested page has moved to a new URL
302 Found
The requested page has moved temporarily to a new URL
303 See Other
The requested page can be found under a different URL
304 Not Modified
Indicates the requested page has not been modified since last requested
306 Switch Proxy
No longer used
307 Temporary Redirect
The requested page has moved temporarily to a new URL
308 Resume Incomplete
Used in the resumable requests proposal to resume aborted PUT or POST requests

Status 4XX

4XX:Client Error

400 Bad Request
The request cannot be fulfilled due to bad syntax
401 Unauthorized
The request was a legal request, but the server is refusing to respond to it. For use when authentication is possible but has failed or not yet been provided
402 Payment Required
Reserved for future use
403 Forbidden
The request was a legal request, but the server is refusing to respond to it
404 Not Found
The requested page could not be found but may be available again in the future
405 Method Not Allowed
A request was made of a page using a request method not supported by that page
406 Not Acceptable
The server can only generate a response that is not accepted by the client
407 Proxy Authentication Required
The client must first authenticate itself with the proxy
408 Request Timeout
The server timed out waiting for the request
409 Conflict
The request could not be completed because of a conflict in the request
410 Gone
The requested page is no longer available
411 Length Required
The "Content-Length" is not defined. The server will not accept the request without it
412 Precondition Failed
The precondition given in the request evaluated to false by the server
413 Request Entity Too Large
The server will not accept the request, because the request entity is too large
414 Request-URI Too Long
The server will not accept the request, because the URL is too long. Occurs when you convert a POST request to a GET request with a long query information
415 Unsupported Media Type
The server will not accept the request, because the media type is not supported
416 Requested Range Not Satisfiable
The client has asked for a portion of the file, but the server cannot supply that portion
417 Expectation Failed
The server cannot meet the requirements of the Expect request-header field

Status 5XX

5XX:Server Error

500 Internal Server Error
A generic error message, given when no more specific message is suitable
501 Not Implemented
The server either does not recognize the request method, or it lacks the ability to fulfill the request
502 Bad Gateway
The server was acting as a gateway or proxy and received an invalid response from the upstream server
503 Service Unavailable
The server is currently unavailable (overloaded or down)
504 Gateway Timeout
The server was acting as a gateway or proxy and did not receive a timely response from the upstream server
505 HTTP Version Not Supported
The server does not support the HTTP protocol version used in the request
511 Network Authentication Required
The client needs to authenticate to gain network access

Html 官方文档

Basic Tags

Basic

Images

Links

Lists

Resource

Download

Online

Related

Formatting

Format

Form/Table

Forms

Tables

Frames

Others

Styles

Meta Info

Programming

Attributes

Core

Language

Keyboard

HTML Events

<body>Events

Form Events

Image Events

Mouse Events

Entities

Character

Status 1XX

1XX:Information

Status 2XX

2XX:Successful

Status 3XX

3XX:Redirection

Status 4XX

4XX:Client Error

Status 5XX

5XX:Server Error

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