Shulou(Shulou.com)06/02 Report--

This article mainly introduces "summing up HTML-related knowledge". In daily operation, I believe many people have doubts about summarizing HTML-related knowledge. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "summing up HTML-related knowledge". Next, please follow the editor to study!

1. What is HTML?

HTML is a language used to describe web pages, referring to the hypertext markup language: HyperText Markup Language

HTML is not a programming language, but a markup language

HTML documents are also called web pages

Basic structure of 2.HTML

: document declaration

The root element of the HTML page

Used to define the header of the document, which is the container for all header elements

Provides meta-information about the page, at the head of the document, and does not contain any content

The title of the document

Define the body of the document, including all the contents of the document

Use 3.HTML tags?

HTML tags are keywords surrounded by angle brackets, and usually appear in pairs, such as, of course, there are individual, but relatively few, such as

The first tag in the tag pair represents the start tag, and the second tag represents the end tag.

Introduction of 4.HTML commonly used tags

In addition to several tags of the basic structure of HTML, HTML also has some basic tags that are more commonly used.

(1) text label:

H2-h7: used to define the title, H2 is the largest title and H7 is the minimum title

P: define paragraph

Span: combining inline elements in a document

Br: line break

Hr: horizontal Lin

Strong/b: bold text

Em/i: italic

U: underline

`s: delete Lin

Pre: define preformatted text and keep the original format

Sub: subscript

Sup: superscript

Blockquote: block referenc

(2) layout label:

Div: define partitions or sections in a document, dividing the document into separate, different parts

Header: defines the header of the page

Aside: used as a sidebar for articles

Section: defining sections in a document

Footer: defines the footer of a document or section, usually containing the author of the document, copyright information, links to terms of use, contact information, etc.

Article: specify other independent content of the article, such as title, content, comments

(3) Multimedia tags:

Img: for inserting images in web pages

Audio: define sound, such as music or other audio streams

Video: define videos, such as movie clips or other video streams

(4) hyperlink tag:

A: define hyperlinks and specify jumps between pages

(5) Serialize the label:

Ul: define unordered lists

Ol: define an ordered list

Li: defines list items that can be used in unordered list ul and ordered list ol

Dl: defines a list of definitions

Dt: defines the items in the definition list (that is, the terminology section)

Dd: defines the definition part of an entry in the definition list

(6) form label:

Table: defining HTML tables

Tr: define the rows of the table

Td: defines the cells of the table

Th: define header

Caption: define table title

Col: define attribute values for one or more columns in a table

Colgroup: used to combine columns in a table for formatting

Thead: defines the header of a table

Tbody: table body, that is, the body

Tfoot: defines the footer (footnote or table note) of a table

(7) form label:

Form: used to create HTML forms for user input

Input: used to collect user information

Button: define a button

Select: create a single or multiple selection menu

Option: define an option in the drop-down list

Textarea: a text input control that defines multiple lines

Label: define dimensions (tags) for input elements

Fieldset: used to group related elements within a form

Legend: define a title for the fieldset element

Considerations for 5.HTML

The HTML file is named when the suffix is .html or .htm.

HTML tags and attributes are case-insensitive. It is recommended that HTML tags and attributes be lowercase, and attribute values must be enclosed in double quotation marks.

HTML tags start with the start tag and end with the end tag

Indent and wrap between HTML tags as far as possible, each line of code should not be too long, easy to read and maintain

The use of HTML tags must comply with tag nesting rules, such as prohibiting a tags from nesting a tags, p tags nesting div tags, etc.

It is recommended not to use tags that have been discarded or disapproved of by HTML, and to use less table layout, iframe framework nesting and flash players.

At this point, the study of "summing up the relevant knowledge of HTML" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.